He did come out and ask if it was ok that we wait until the end of the game. It was very endearing, but I think most of the crowd was thinking screw the game - we came to see you play. He was also favoring his right shoulder/arm - something from filming Leverage. But during his set, you would never know it.
Ok - back on topic...ummm, maybe he was texting Jensen during the game and just didn't want to ditch him until it was over.