This game has the stress of the real job of being a valet, the only valet working. Park each car as fast as you can with accuracy and then grab the next customer's car. No time for joyrides here.
I do find it kind of interesting that a rich guy would allow a young, naive college student to park his 200,000 dollar vehicle and not worry about it being scratched. I think the more I spent on a car the less likely I would let any one but me get behind the wheel.