Well if the Stang did have "faulty equipment" then it was his fault and he'll get the ticket... As to going back and checking the tires on the road I doubt they could prove anything to a "reasonable doubt"...
Plus there cops and only what you say can be held against you in a court of law... right?... Yeah I would of went back and if the guy was that much of a jerk, I would of just lied my ass off and drove away...