The stakeout scene was actually the first scene filmed. It was conceived as an ad lib between Randall Lobb and Tom Tennisco for the purposes of stirring their creative juices.
The gunfight with the barn is the first time in cinematic history that someone has had a gunfight with an inanimate object.
Bobby's bullet impacts on the side of the barn spell out "HCPD," an acronym for Huron County Police Department, which can also be seen on the vanity license plate of the patrol vehicle/minivan.
Tom Tennisco also plays the roles of the barn-bomber and the voice of the man inside the barn - basically anything barn-related.