Hilarious in Hindsight: One of the T-shirts sold at the concert is Spinal Tap kicking Mohammar Gidaffi in the butt. Years later, having his ass kicked (by his own people, not a rock band) is how Gidaffi died.
Ten weeks after the episode aired Guns N' Roses abruptly ended a concert in St. Louis, sparking a massive riot very similar to the Spinal Tap fiasco in the episode. Coincidentally, Slash made a guest appearance on the song performed by Spinal Tap in the episode.
What an Idiot: Yes Otto, go ahead and insult your drivers license teacher by asking her if she's a post-op transsexual.