It's the April Fools episode. Your favorite fools go so far into the realm of dark humor that even Justin gives up. It's about as vile an episode as you can get.
Episode
TBag Random FactA law passed in Nebraska in 1912 set hard rules of the road. Drivers in the country at night were required to stop every 150 yards, send up a skyrocket, then wait eight minutes for the road to clear before proceeding cautiously, all the while blowing their horn and shooting off flares.