I hate to mention it here because I don't want the mgr to get in trouble. But somewhere in SoCal I parked my Avis car every night for almost two years. I had a customer in SoCal and I flew back home every night (cheaper than a hotel room and I was finishing up an MBA program).

If you get to the general mgr, tell them what you're doing and I think you will be surprised that they have no problem with it.