Benson, who was your carrier? I know for a fact that you can call Fedex to pick it up once the driver has returned from his route. I would assume the same with UPS. I've picked up many items from the Fedex shipping center when I missed the delivery.
UPS.. i called.. ups said "we can only deliver to your home/delivery address, you cannot pick up at the ups shipping center" They will make 3 attempts and then send it back to AT&T.