Alison tells the story of going into witness protection 21 years before 1975, which would have been 1954, but witness protection was founded in the late 1960s.
When Starsky & Hutch are standing on the road discussing Hutch's new car, a bystander or crew member is visible in the back of the shot, observing the scene.
The shadow of the boom mic and camera equipment can be seen at the bottom right of the screen (at around 10 mins).