It would be nice if there were some "autonomous valet" system where cars could drive into a lot, get an electronic "ticket" at the gate, drive to the disembark location, then autopark in the location on the ticket.

valet banish, where nobody drives your car.

In NYC for stops of a few hours or less it would often be cheaper in gas $ to have the car keep driving, circling the local neighborhood, instead of paying for parking.