Based upon this latest incident, the only thing left to do is to evade such a stop long enough to gain access to your weaponry and then dispatch as many of these thugs as possible before they get to you. I can tell you one thing for sure,it would be considered to be "risky behavior" to try to stop ME in a unmarked car while not wearing a uniform and pointing a gun at me. you better either bring body bags or a squad car with lights and uniformed officers. I sure as hell ain't stopping and surrendering to anybody else!
PS: Sooner or later "Peasant Schultz'" dad or uncle is going to turn out to be a former you know who who is going to close out his business and go on an "extended vactation in Costa Rica or somewhere" rather vague.
That's when it's going to get interesting.