Other mistake: Rogue states that this is Jubilee's first Christmas as an X-Man. However, Jubilee was already a member of the X-Men when Senator Kelly declared his candidacy for President in season 1, and the season 2 premiere episode showed him being sworn-in as President. Election Day is in November and the President is sworn-in in January, so Jubilee should have already had at least one Christmas as a member of the X-Men.
Other mistake: When Ape and Annalee walk to the back doors of the ambulance, the window on the right rolls down. Ignoring the fact that those windows don't actually roll down, neither Ape nor Annalee do anything to make it roll down.