I just got pulled over by a Virginia State Trooper for having "unapproved illegal exhaust" on my 07 Mustang GT. My exhaust system consists of SLP Loudmouth axleback mufflers and a Pypes Cut 'n Clamp X. My car was emissions inspected 3 weeks ago and I showed the trooper the documentation stating that my exhaust is indeed legal, and passed the inspection. He insisted that, in order for exhaust to be legal, it has to be "from the factory", which to my knowledge is erroneous. Is this a winable argument in court or should I just pay the fine?