Sadly, I have been turned away from Contemporary parking with only having a character breakfast reservation. Really throws a dent into your experience and timing. Not sure if they were at max capacity or hosting a convention, but I wasn't about to argue with security.
I was allowed to drop off my guests, but had to relocate the car to the TTC, and monorail it over. On the way back, it wasn't worth the time, so I had a Lyft pick me up and we talked our way back into the parking lot and the Lyft driver was kind enough to take me right to my car (big tip!).