This is not a punchline. See below.
He was reportedly "rather sheepish" about having fallen asleep. He was shown photos of the work on a couple of those picture-takin' cell phones the kids all love. No report on his reaction to that.
Other info is classified, as the ROTC is involved. Actually it's because I'm about to reveal that my wife said this is her "Dream Class of bright, funny kids" and I don't want that going to anybody's head. As for potential "trouble" au contraire. She's having it blown up into a poster.