All hotels have jacked up parking charges, even those in LA suburbs where parking is free and plentiful. Can't say I really blame them. They probably can't make much of a profit on priceline rates so they have to make up the lost revenue somehow or they will go out of business.

Of course, since parking is usually an optional charge, the smart traveler will figure out a way to park less expensively in a nearby location. Those on expense accounts will probably not bother.