Friday's fake driver's license shows a birthdate of April 2, 1925, issued from the Santa Monica DMV office. Jack Webb was born on April 2, 1920 in Santa Monica.
Stephen Deal's car that Friday uses is a 1960 Ford Country Squire station wagon.
In Sergeant Friday's (Jack Webb) opening monologue, he states that of the 25,000 people who will die that year (1967), 300 deaths will be from homicide. Four decades later Los Angeles still had around 300 homicides in the city, which was a consistent trend.
Don Dubbins and Jack Webb worked together previously in "The D.I.".