Watch the video below the fold. The citizen saw a cop on patrol in an unmarked car, which is illegal in Washington, and flagged him down to tell him that he was in violation of the law.
Seim then went through all the normal steps of a traffic stop: taking the officer’s name and asking to see his license. Then after a lengthy discussion about the law, Seim let him off with a warning. He urged the officer to speak with his bosses about their illegal patrol cars.