(at approx. 9:58 mins) it's Charlie Picerni , stunt double and driver double for Paul Michael Glaser that drives up in Starsky's car with Gary Epper, stunt double for David Soul getting out of the passenger seat. During the subsequent fight scene, Charlie Picerni pops out of the shrubs but the lines, "Hey man. Come on, man.", are dubbed by Paul Michael Glaser.
When Ginger goes to her car she doesn't insert the key fully to unlock the door.