so the average citizen ( or , as barris always said in his quasi-educated lofty way , the typical average citizen ) knew by now that no black-and-white ran the risk of pulling over a fast-moving souped-up , racing-striped '57 chevy with what appeared to be a wild teen-ager spaced out behind the wheel on coors beer-and then finding he 'd halted an undercover nark vehicle in hot pursuit of its quarry .