Other mistake: In the morning after scene, when the three men are sitting at the dining table by the pool with the baby, watch the extras milling about behind them. The same two people pass behind them twice from the same direction just moments apart. A little later a woman in a swimsuit walks by behind two of the characters. After a few more lines of dialogue, she is still walking by behind another of the characters.
Other mistake: Isn't it supposed to be the weekend? Why is a classroom full of kids taking a tour of the police station on a Saturday?
Answer: In the pictures, it is Stu that is fighting with Wayne Newton. It could be assumed that Phil got involved afterwards, but it is never shown.