No parking as in a parking lot, and their shows tend to run later than the 9:30s. They don't seem to care if you make the metro or not (though is that still an issue with the expanded hours?).
Typically, if there's one opening band, they'll go on around 9, with the headliner at 10. But if there are two openers, the headliner can go on as late as 10:30, 11:00.