You do not have to sign for the package unless the Carrier requires it, which they usually do not.  Most carriers either put the package in your mailbox, or by your front door or garage without requiring a signature.  Some carriers, like DHL, are more strict and require signatures for some of their packages.Best case scenario:  Try to have someone home the day your art is out for delivery so that you can guarantee to yourself that you'll get your delivery that day.   Worst case scenario:  If you missed your delivery, you'll have to wait another day, the whole weekend, or worse, you have to go to the Post Office to get it!