What film is this?

[soapygeezer]

The final scene of a 70's film involved some bad guys in a camper van being pulled over by a motorcycle cop on a deserted stretch of Arizona looking highway. The cop only wants to check something minor with them then lets them go. However he then tries to stop them again to be helpful but they shoot him with a shotgun. any guesses?

[Philtaz]

The film is called Electraglide In Blue.

[ki46ej03]

the late robert blake played the cop