I believe the Hollywood Bowl is owned by the county.

Here in Atlanta, we have Chastain Park, and when they say they close at 11pm...they MEAN that shit. It doesn't matter who is performing. So artists have to start on time or they run the risk of getting the hook midway through their set.

I experienced the pros and cons of that. Shows generally start on time, with not a lot of break in between multiple artists. But, I've seen artists who were feeling it, and all of a sudden someone walks onstage and says, "Thanks for coming." Que the lights.