Listed ending times for shows are sometimes off, so even if you think you've planned it appropriately, you can still get tripped up. And not everyone has easy access to New York and has a lot of options about travel times. I don't know if I would make a habit of it, but if someone's options are to leave the show at intermission, leave as soon as the curtain comes down, spend the night sleeping on the street, or not see the show at all, I personally wouldn't begrudge them taking Option #2.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"