Due to his weight and heavy drinking, Broderick Crawfordoften stumbled around on the set. In this episode, he injured his ankle getting out of the helicopter and could be seen limping in his ankle brace in a few subsequent episodes.
The convertible Marge is driving is a 1956 Ford.
The Highway Patrol car Sgt. Corey is driving is a 1956 Dodge.
The rifle the gunman uses is an M1 Carbine, widely used in WW II and the Korean War.
This is the first appearance of the new 1956 Dodge Coronet Club 2 door Sedan as a Highway Patrol Vehicle. With its "B" Pillar, the Coronet is easily distinguishable from the Coronet Lancer or Royal Lancer versions. This could also have been a "Product Placement" by Dodge for their new "Pursuit" model for law enforcement rated at 230hp.