MSG - what time did it let out?

Seeing them tonight but am also Fifty-Something myself and have to head right back into the city Friday morning for work. Is it realistic to catch a 10:56pm train out of Penn Station (and get home for some semblance of sleep) or will I need to bring a book and plan on waiting for the 11:41pm train?

Edit: Thanks, everyone! I was worried about having to miss the encore/outro but it looks like it'll work out. See you there!