Cancer Support

I had to go to a big city hospital for a repeat colonoscopy. We went to the parking garage which had a lot of "free for patients" signs scattered about. We go in and come out 4 hours later. 2 of those hours were them being late, which happens. We go to leave, my sister gives him the validated ticket, and he says $10. I told her it was free. Nope, $10. I say, the sign says it's free for patients. Nope, only free for 30 minutes. 30 minutes? What can a patient do at the Hospital of the University of Pennsylvania in 30 minutes???? I wasn't even checked in in 30 minutes. Thanks guys!