I’m just surprised that the window tint in the squad car isn’t entirely jet black like nearly all other government vehicles. Some people (not just cops) can stop and stall traffic. Some people can have tinted windows. Some people get huge property tax breaks for having rebar sticking out of their roofs, some people can ram you from behind, or stop short, and you will be charged with “stopping short” or “following too closely”, some have “the power” and others don’t. Just the way it is.