Highway Patrol - Season 2 - Eps 34: Fake Cop
One member of a three-person holdup team impersonates a Highway Patrol officer in order to deceive robbery victims into thinking that they need not notify the Patrol themselves.
About Highway Patrol

Title: Highway Patrol
First Air Date: 1955-10-03
Last Air Date: 1958-04-28
Status: Ended
Rating: 5.8/10 (from 9 votes)
Language: EN
Seasons: 5
Total Episodes: 156
Network: Syndication
Genres: Action & Adventure, Drama
Production Companies: Ziv Television Programs
Synopsis
Highway Patrol was a syndicated, fictional police action series produced from 1955 to 1959, concerning the activities of the highway patrol and their leader, Dan Matthews (who held no rank). Although filmed in and around the Los Angeles area, the state setting for the stories was never identified, and city and street names were fictionalized.
Cast

Broderick Crawford
Chief Dan Mathews

Art Gilmore
Narrator