Source: https://www.tempe.gov/government/police/vehicle-impounds/lien-holder-repossession-information
Timestamp: 2019-04-19 04:27:39+00:00

Document:
Monday 1:00 p.m.- 3:00 p.m.
Tuesday, Wednesday, Thursday 9:00 a.m.-10:30 a.m. and 1:00 p.m.- 3:00 p.m.
A lien holder may be a motor vehicle dealer; bank; credit union or acceptance corporation; any other licensed financial institution legally operating in th State; or is another person who is not the owner and who holds a security interest in the vehicle. The lien holder must have been the lien holder on the MVD record at the time of the tow or impound in order to be granted a release. The lien must still be in force in order for the lien holder to qualify.
Proof the person acting as the company representative is indeed an employee. This can be in the form of a business card or an authorizing letter on company letterhead. A private individual may simply present a driver’s license and or a combination of ID that will suffice to ensure they are who they purport to be.
A notarized Affidavit of Repossession from the Motor Vehicle Division.
A notarized “hold harmless” (see examples in sidebar navigation) letter which in affect states the lien holder will hold the police department harmless from any civil actions as a result of the release of the vehicle.
c. Can be written by hand or typed - letterhead is not necessary.
In lieu of the affidavit from the Motor Vehicle Division or Power of Attorney, the lien holder may present a “Writ of Replevin” from any court. A “Writ of Replevin” is a court order to repossess property and must list the vehicle’s description including the identification number (VIN).
NOTE: Regardless of what paperwork the lien holder presents, any document longer than a single page, where the notary stamp/seal falls on the last page, shall reference the vehicle in question by VIN, license or account/loan number on each page.
"In accordance with the provisions of ARS §28-3511 and ARS §28-3512, (name of lien holder) agrees not to release the vehicle to the current registered owner of the vehicle if they were the driver at the time of the impoundment. We understand that if we do give this vehicle to this individual prior to the 30th day, we will face legal sanctions. We further understand that in accordance with the provisions of ARS §28-3512, the Tempe Police Department agrees to release the listed vehicle upon payment of all charges and fees with the understanding that if [in the future] the authorized party (lien holder) allows an unlicensed driver or a driver who is arrested for ARS §4-244 (Minor Consuming Alcohol), §28-1382 (Extreme DUI) or §28-1383 (Aggravated DUI) within one year from the signing of this Agreement, then the vehicle shall not be eligible for release from future impoundment before the end of a 30 day period."
Please bring your documents in a packet form. We are not able to make copies for you.

References: §28
 §28
 §28
 §4
 §28
 §28