My experience is Valet Parking drivers always drive like race car drivers - the more cars they can park in any given time period, the more tips they make !
Of course, they have NO idea how to drive Hybrids - they floor the gas routinely - my lowest mpg except for stop-and-go traffic is in the parking lots (don't forget, they may also move your car multiple times).
I have taught the guy at a regular attendant lot I park at how to be gentle on the gas - he wants a Hybrid for himself !!
My car got a ding in the bumper already from another attendant parking lot - now I generally self-park although it costs me double
The manual, by the way, recommends towing with all 4 wheels off the ground....
Driving HCH since 1/2/06, largely deep city driving. Finally filled up today, 1/19/06 for the first time ! Filled up at 4 bars, 350 miles.