William Young gets stopped by a member of law enforcement. When Mr. Young calls him "officer", the reply is, "That's 'Sheriff'", yet the patrol car is boldly emblazoned "Dover Police".
About 30 minutes into the movie, the lead female character steals a line from Seinfeld, namely, "This isn't going to be good for business... This isn't going to be good for anyone." It's from the "The Chicken Roaster" episode.