Document:

<PAGE>   1
                                                                   EXHIBIT 10.14

                      HOLD HARMLESS AND INDEMNITY AGREEMENT

         A hold harmless and indemnity agreement between Wabash National
Corporation, a Delaware corporation, with its principal place of business at
1000 Sagamore Parkway South, Lafayette, Indiana (hereafter "Wabash") and Roadway
Express Inc., a Delaware corporation, with its principal place of business at
1077 Gorge Boulevard, Akron, Ohio (hereafter "Roadway").

                                    RECITALS

         1. Wabash is a manufacturer of semi-trailers that also engages in the
restoration of worn semi-trailer equipment.

         2. Roadway is a user of semi-trailers that requires restoration of a
portion of its 28' van semi-trailer fleet that is worn.

         3. Roadway and Wabash believe that certain changes in federal excise
tax law and related authority on semi-trailer equipment, bring into question
whether federal excise taxes are due on Roadway's trailers restored by Wabash.

         4. As both parties believe that federal excise taxes will not be due on
those trailers of Roadway restored by Wabash, the restoration price per unit
does not include federal excise tax.

         5. Roadway and Wabash are not sure what position the Internal Revenue
Service will take on whether or not federal excise taxes will be due on those
trailers of Roadway restored by Wabash.

         6. In order to induce Wabash to agree to perform such restoration work,
Roadway enters into the following agreement and assurances with Wabash.

                                    AGREEMENT

         In consideration of Wabash agreeing with Roadway to a restoration price
per trailer in the Sales Confirmation that does not include federal excise tax,
Roadway and Wabash agree as follows:

         A. Notwithstanding pre-printed provisions appearing on the back of or
attached to the Sales Confirmation as to the Confirmation being the entire
agreement between Roadway and Wabash, both Roadway and Wabash agree that this
Hold Harmless and Indemnity Agreement shall supplement the Sales Confirmation.
In the event that this Agreement conflicts with any terms appearing in the Sales
Confirmation, then the provisions of this Agreement shall override the
conflicting terms in the Sales Confirmation.

         B. In the event that the Internal Revenue Service, either formally or
informally, contests the failure of Wabash to pay federal excises with respect
to any trailers sold and delivered to Roadway after January 1, 1998, or amounts
claimed to be due on that account, then

                                     page 1
<PAGE>   2
Roadway agrees to save Wabash harmless from and indemnify it as to any such
taxes, together with interest, penalties, attorney fees, and out-of pocket
expenses, subject only to the following conditions:

         1.       Wabash will promptly give notice to Roadway of any claim,
                  whether formally or informally asserted, by the Internal
                  Revenue Service of a failure of Wabash to pay federal excises
                  taxes;

         2.       Wabash will fully cooperate in defending against the assertion
                  of deficiency in payment of federal excise taxes and shall
                  retain attorneys designated by Roadway to represent Wabash;
                  provided, however, that Roadway shall pay all statements of
                  fees and expenses of such attorneys.

         3.       Roadway will be considered a joint client of attorneys
                  retained to defend against the imposition of such taxes and
                  shall be entitled to all of the legal confidences and
                  communications relating to such taxes;

         4.       In the event that Roadway agrees to a settlement of the
                  claimed taxes, penalties and interest, it shall pay Wabash the
                  amount required therefor, which amount in turn shall be paid
                  to the Internal Revenue Service; and

         5.       Upon notification of the entry of judgment against Wabash in
                  respect of such taxes, which judgment becomes final without
                  right of appeal or further appeal, Roadway shall promptly
                  tender the amount required in discharge thereof in full
                  including interest, if any, and costs. In addition, Roadway
                  will: (1) provide any appeal bonds necessary to stay the
                  payment of judgment pending appeal and (2) pay any tax,
                  subject to repayment if a court so decides, if the parties
                  determine that it would be advantageous to pay the tax and sue
                  for a refund.

         C.       This Agreement will be governed and construed according to
                  Indiana law.

         D.       The parties agree that should any dispute arise between them
as to the terms of this Agreement or relating in any way to it, the matter shall
be resolved through arbitration before an arbitrator appointed by the Center for
Public Resources, New York, New York, and according to its rules of procedure.
The place of arbitration shall be Chicago, Illinois.

FOR ROADWAY EXPRESS, INC.                        FOR WABASH NATIONAL CORPORATION

By:                                              By:
   -------------------------------------            ----------------------------

Name:  J. Dawson Cunningham                      Name:  Donald J. Ehrlich
     -----------------------------------              --------------------------

Title: V.P. Finance/Administration               Title: President and C.E.O.
      ----------------------------------               -------------------------
      & Treasurer
      ----------------------------------
Date:                                            Date:
     -----------------------------------              --------------------------

                                     page 2<PAGE>   1
                                                                    Exhibit 4.22

                 FIRST AMENDMENT TO SECOND AMENDED AND RESTATED
                           REVOLVING CREDIT AGREEMENT

                  THIS FIRST AMENDMENT TO SECOND AMENDED AND RESTATED REVOLVING
CREDIT AGREEMENT (this "Amendment") is made as of June 18, 1999, by and among
EOP OPERATING LIMITED PARTNERSHIP (the "Borrower"), EQUITY OFFICE PROPERTIES
TRUST (the "Guarantor"), NATIONSBANK, N.A., as Administrative Agent for the
Banks (the "Administrative Agent"), MORGAN GUARANTY TRUST COMPANY OF NEW YORK,
THE CHASE MANHATTAN BANK, as Documentation Agent and as Managing Agent, J.P.
MORGAN SECURITIES INC., as Syndication Agent, THE BANK OF NOVA SCOTIA,
COMMERZBANK AKTIENGESELLSCHAFT, DRESDNER BANK AG, NEW YORK AND CAYMAN BRANCHES,
PNC BANK, NATIONAL ASSOCIATION, and UNION BANK OF SWITZERLAND, NEW YORK BRANCH,
as Managing Agents, CREDIT LYONNAIS, NEW YORK BRANCH, FLEET NATIONAL BANK, and
U.S. BANK NATIONAL ASSOCIATION, as Co-Agents, and the BANKS party hereto.

                              W I T N E S S E T H:

                  WHEREAS, the Borrower has executed and delivered to the Agents
(or their predecessors), the Managing Agents, certain of the Co-Agents and the
Banks that certain Second Amended and Restated Revolving Credit Agreement dated
as of May 29, 1998, by and among the Borrower, certain of the Banks, the
Managing Agents, the Co-Agents and the Agents (the "Credit Agreement");

                  WHEREAS, the Borrower has requested that the Banks agree to
modify the Credit Agreement in order to amend certain provisions therein, upon
the terms and conditions set forth herein, and the Administrative Agent has
recommended that such modification be approved by the Banks.

                  NOW, THEREFORE, for good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties do hereby
agree as follows:

                  1. Definitions. All capitalized terms not otherwise defined
herein shall have the meanings ascribed to them in the Credit Agreement.

                  2. Amendments.

                  (a) The definition of "Applicable Margin" set forth in the
Credit Agreement is hereby amended by adding the following clause at the end of
the first sentence thereof:

                  "; provided, however, that, during the twelve (12) month
                  period following the closing of an Identified Merger or
                  Acquisition (as hereinafter defined), if the ratio of Total
                  Liabilities to Total Asset Value of the Borrower at any time
                  exceeds 0.50:1, then the Applicable Margin for Euro-Dollar
                  Loans made or outstanding during the period that such ratio
                  exceeds 0.50:1 shall be Applicable Margin set forth on the
                  table below plus 0.20%.

                  (b) The definition of "Documentation Agent" set forth in the
Credit Agreement is hereby deleted and the following is substituted therefor:

                  "Documentation Agent" means The Chase Manhattan Bank, in its
                  capacity as Documentation Agent hereunder, and its permitted
                  successors in such capacity in accordance with the terms of
                  this Agreement.
<PAGE>   2
                  (c) The definition of "Joint Venture Subsidiary" is hereby
amended by (1) inserting the word "substantially" between "is" and "controlled"
in clause (ii) of the first sentence thereof, and (2) inserting the following
clause at the end of the first sentence thereof: ", subject to customary
provisions set forth in the organizational documents of such Joint Venture
Subsidiary with respect to refinancings or rights of first refusal granted to
other members of such Joint Venture Subsidiary."

                  (d) The definition of "Unencumbered Asset Value" is hereby
amended by (1) inserting the words "the sum of" after the word "means" in the
first line thereof, (2) inserting the following words after "(i)" in the first
line thereof: "all Cash and Cash Equivalents of the Borrower, all Financing
Partnerships and Joint Venture Subsidiaries which are not subject to any pledge,
negative pledge, encumbrance, hypothecation or other restriction (provided that
in the case of Cash and Cash Equivalents of any Joint Venture Subsidiary, the
amount of Cash and Cash Equivalents attributable to such Joint Venture
Subsidiary shall be reduced to a percentage equal to the Borrower's percentage
ownership interest (whether direct or indirect) in such Joint Venture
Subsidiary), plus (ii)", (3) deleting "$1.50" from the fifth line thereof and
substituting therefor "$0.50", (4) renumbering clause (ii) in the tenth line
thereof as clause (iii) and revising all cross-references to such clause within
such definition, (5) deleting "twenty-five percent (25%)" from line 23 thereof
and substituting therefor "twenty percent (20%)", and (6) deleting "twenty-five
percent (25%)" from line 27 thereof and substituting therefor "fifteen percent
(15%)."

                  (e)      Section 5.8(a) of the Credit Agreement is hereby
deleted in its entirety and substituted therefor is the following covenant:

                  (a) Total Liabilities to Total Asset Value. The Borrower shall
                  not permit the ratio of Total Liabilities to Total Asset Value
                  of Borrower to exceed 0.50:1 at any time except for the twelve
                  (12) month period described in the following sentence. During
                  the twelve (12) month period following the closing of the
                  Identified Merger or Acquisition, Borrower shall not permit
                  the ratio of Total Liabilities to Total Asset Value of the
                  Borrower to exceed 0.55:1. As used in this Agreement, the term
                  "Identified Merger or Acquisition" shall mean the first merger
                  or acquisition by Borrower or any Subsidiary which Borrower
                  has designated in writing to the Administrative Agent as the
                  Identified Merger or Acquisition at least thirty (30) days
                  prior to the closing of such merger or acquisition and for
                  which Borrower has, prior to the closing of such merger or
                  acquisition, provided the Administrative Agent with Borrower's
                  projections for the twelve (12) month period following such
                  merger or acquisition, after giving effect to such merger or
                  acquisition, outlining in reasonable detail the anticipated
                  performance of Borrower during such twelve (12) month period
                  and anticipated compliance with the requirements of Section
                  5.8 hereof during such twelve (12) month period.

                  (f) Section 5.8(j) of the Credit Agreement is hereby amended
by deleting "fifteen percent (15%)" from the sixth line thereof and substituting
therefor "twenty percent (20%)".

                  3. Confirmation of Guaranties. Guarantor hereby acknowledges
and agrees that the Amended and Restated Guaranty of Payment - No. 1 dated as of
May 29, 1998 and the Amended and Restated Guaranty of Payment - No. 2 dated
<PAGE>   3
as of May 29, 1998, each entered into in connection with the Credit Agreement,
and the Guarantor's obligations under each such guaranty, continue in full force
and effect notwithstanding this Amendment.

                  4. Representations and Warranties. The Borrower hereby
represents and warrants to the Banks that no Default or Event of Default exists
under the Credit Agreement and that the representations and warranties of the
Borrower set forth in the Credit Agreement are true and correct on and as of the
date hereof, except to the extent that such representations and warranties
expressly speak only as of a prior date, in which case such representations and
warranties were true and correct on and as of such prior date.

                  5. Effective Date. This Amendment shall become effective upon
receipt by the Administrative Agent of counterparts hereof signed by each of the
parties hereto (or, in the case of any party as to which an executed counterpart
shall not have been received, receipt by the Administrative Agent in form
satisfactory to it of telegraphic, telex or other written confirmation from such
party of execution of a counterpart hereof by such party).

                  6. Entire Agreement. This Amendment constitutes the entire and
final agreement among the parties hereto with respect to the subject matter
hereof and there are no other agreements, understandings, undertakings,
representations or warranties among the parties hereto with respect to the
subject matter hereof except as set forth herein.

                  7. Governing Law. This Amendment shall be governed by, and
construed in accordance with, the law of the State of Illinois.

                  8. Counterparts. This Amendment may be executed in any number
of counterparts, all of which taken together shall constitute one and the same
agreement, and any of the parties hereto may execute this Amendment by signing
any such counterpart.

                  9. Headings, Etc. Section or other headings contained in this
Amendment are for reference purposes only and shall not in any way affect the
meaning or interpretation of this Amendment.

                  10. No Further Modifications. Except as modified herein, all
of the terms and conditions of the Credit Agreement, as modified hereby shall
remain in full force and effect and, as modified hereby, the Borrower confirms
and ratifies all of the terms, covenants and conditions of the Credit Agreement
in all respects.

                            Signature Pages to Follow
<PAGE>   4
                  IN WITNESS WHEREOF, the parties hereto have caused this
Amendment to be duly executed by their respective authorized officers as of the
day and year first above written.

                                            EOP OPERATING LIMITED PARTNERSHIP,
                                            a Delaware limited partnership

                                            By: Equity Office Properties Trust,
                                                a Maryland real estate
                                                investment trust, its managing
                                                general partner

                                            By:  /s/ RICHARD D. KINCAID
                                               ---------------------------------
                                            Name: Richard D. Kincaid
                                                 -------------------------------
                                            Title:  Executive Vice President and
                                                  ------------------------------
                                                  Chief Financial Officer

WITH RESPECT TO
SECTION 3 HEREOF
ONLY:                                       EQUITY OFFICE PROPERTIES TRUST

                                            By: /s/ RICHARD D. KINCAID
                                               ---------------------------------
                                            Name:  Richard D. Kincaid
                                                 -------------------------------
                                            Title: Executive Vice President and
                                                  ------------------------------
                                                  Chief Financial Officer

                                            NATIONSBANK, N.A., as Administrative
                                            Agent, as Swingline Lender and as a
                                            Bank

                                            By:  /s/ PATRICK TRONBRIDGE
                                               ---------------------------------
                                            Name: Patrick Tronbridge
                                                 -------------------------------
                                            Title: Vice President
                                                  ------------------------------

                                            Commitment:  $138,000,000

                                            THE CHASE MANHATTAN BANK, as
                                            Documentation Agent, as a Managing
                                            Agent and as a Bank

                                            By: /s/ MARC E. COSTANTINO
                                               ---------------------------------
                                            Name: Marc E. Costantino
                                                 -------------------------------
                                            Title: Vice President
                                                  ------------------------------

                                            Commitment:  $65,000,000
<PAGE>   5
                                            J.P. MORGAN SECURITIES, INC., as
                                            Syndication Agent

                                            By: /s/ JENNY Y. LEE
                                               ---------------------------------
                                            Name: Jenny Y. Lee
                                                 -------------------------------
                                            Title: Vice President
                                                  ------------------------------

                                            MORGAN GUARANTY TRUST COMPANY OF NEW
                                            YORK, as a Bank

                                            By: /s/ ROBERT BOTTAMEDI
                                               ---------------------------------
                                            Name: Robert Bottamedi
                                                 -------------------------------
                                            Title: Vice President
                                                  ------------------------------

                                            Commitment:  $69,000,000

                                            COMMERZBANK AKTIENGESELLSCHAFT, as a
                                            Managing Agent and as a Bank

                                            By: /s/ DOUGLAS P. TRAYNOR
                                               ---------------------------------
                                            Name: Douglas P. Traynor
                                                 -------------------------------
                                            Title: Vice President
                                                  ------------------------------

                                            By: /s/ DAVID BUETTNER
                                               ---------------------------------
                                            Name: David Buettner
                                                 -------------------------------
                                            Title: Assistant Treasurer
                                                  ------------------------------

                                            Commitment:  $65,000,000
<PAGE>   6
                                            DRESDNER BANK AG, NEW YORK AND
                                            CAYMAN BRANCHES, as a Managing Agent
                                            and as Bank

                                            By: /s/ BERVERLY G. CASON
                                               ---------------------------------
                                            Name:   Berverly G. Cason
                                                 -------------------------------
                                            Title:  Vice President
                                                  ------------------------------

                                            By: /s/ JOHN W. SWEENEY
                                               ---------------------------------
                                            Name:   John W. Sweeney
                                                 -------------------------------
                                            Title:  Vice President
                                                  ------------------------------

                                            Commitment:  $65,000,000

                                            PNC BANK, NATIONAL ASSOCIATION, as a
                                            Managing Agent and as a Bank

                                            By: /s/ MICHAEL E. SMITH
                                               ---------------------------------
                                            Name:   Michael E. Smith
                                                 -------------------------------
                                            Title:  Vice President
                                                  ------------------------------

                                            Commitment:  $65,000,000

                                            UBS AG, NEW YORK BRANCH, successor-
                                            in-interest to Union Bank of
                                            Switzerland, New York Branch, as a
                                            Managing Agent and as a Bank

                                            By: /s/ JEFFERY W. WALD
                                               ---------------------------------
                                            Name:   Jeffery W. Wald
                                                 -------------------------------
                                            Title:  Executive Director
                                                  ------------------------------

                                            By:  /s/ DAVID GOLDMAN
                                               ---------------------------------
                                            Name:    David Goldman
                                                 -------------------------------
                                            Title:   Director
                                                  ------------------------------

                                            Commitment:  $65,000,000

                                            CREDIT LYONNAIS, NEW YORK BRANCH, as
                                            a Co-Agent and as a Bank

                                            By: /s/ JAMES FITZGERALD
                                               ---------------------------------
                                            Name:   James Fitzgerald
                                                 -------------------------------
                                            Title:  Senior Director
                                                  ------------------------------

                                            Commitment:  $54,000,000
<PAGE>   7
                                            FLEET NATIONAL BANK, as a Co-Agent
                                            and as a Bank

                                            By:  /s/ THOMAS J. PONTES
                                               ---------------------------------
                                            Name:    Thomas J. Pontes
                                                 -------------------------------
                                            Title:   Vice President
                                                  ------------------------------

                                            Commitment:  $54,000,000

                                            BANK ONE, ILLINOIS, N.A., as a Bank

                                            By:  /s/ LYNN BRAUN
                                               ---------------------------------
                                            Name:    Lynn Braun
                                                 -------------------------------
                                            Title:   Vice President
                                                 -------------------------------
                                            Commitment:  $50,000,000

                                            U.S. BANK NATIONAL ASSOCIATION,
                                            as a Co-Agent and as a Bank

                                            By:
                                                 -------------------------------
                                            Name:
                                                 -------------------------------
                                            Title:
                                                 -------------------------------
                                            Commitment: $54,000,000
<PAGE>   8

                                            BAYERISCHE HYPO-UND
                                            VEREINSBANK AG, AS SUCCESSOR
                                            BY MERGER TO
                                            BAYERISCHE HYPOTHEKEN-UND
                                            WECHSEL-BANK AKTIENGESELLSCHAFT, as
                                            a Bank

                                            By:  /s/ MEGGAN W. WALSH
                                               ---------------------------------
                                            Name:    Meggan W. Walsh
                                                 -------------------------------
                                            Title:   Managing Director
                                                  ------------------------------

                                            By:  /s/ DENNIS B. TRACEY
                                               ---------------------------------
                                            Name:    Dennis B. Tracey
                                                 -------------------------------
                                            Title:   Director
                                                  ------------------------------

                                            Commitment:  $50,000,000

                                            BANKBOSTON, N.A., as a Bank

                                            By:  /s/ DOUGLAS S. NOVITCH
                                               ---------------------------------
                                            Name:    Douglas S. Novitch
                                                 -------------------------------
                                            Title:   Authorized Officer
                                                  ------------------------------

                                            Commitment:  $31,000,000

                                            LASALLE NATIONAL BANK, as a Bank

                                            By:  /s/ PETER MARGOLIN
                                               ---------------------------------
                                            Name:    Peter Margolin
                                                 -------------------------------
                                            Title:   A.V.P.
                                                  ------------------------------

                                            Commitment:  $30,000,000

                                            MELLON BANK, as a Bank

                                            By:  /s/ MICHAEL FALLON
                                               ---------------------------------
                                            Name:    Michael Fallon
                                                 -------------------------------
                                            Title:   Vice President
                                                  ------------------------------

                                            Commitment:  $30,000,000
<PAGE>   9

                                            UNION BANK OF CALIFORNIA, N.A., as a
                                            Bank

                                            By:  /s/ DIANA GIACOMINI
                                               ---------------------------------
                                            Name:    Diana Giacomini
                                                 -------------------------------
                                            Title:   Vice President
                                                  ------------------------------

                                            Commitment:  $30,000,000

                                            THE INDUSTRIAL BANK OF JAPAN,
                                            LIMITED, as a Bank

                                            By:  /s/ TAKESHI KUBO
                                               ---------------------------------
                                            Name:    Takeshi Kubo
                                                 -------------------------------
                                            Title:   Vice President
                                                  ------------------------------

                                            Commitment:  $20,000,000

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