I just let them pass... I had some guy in his Dodge Neon come off an offramp in VA where I was living and decided he wanted to show off. He looked over, saw me, pointed at me, then floored it. I just kept going my normal speed. I guess he thought I wasn't going to let him get away with that. Well, the cop in the gas station ahead took care of that for me. When I passed him on the shoulder with the po-po behind him, I slowed down so he could see my face laughing at him for being careless...
There could be a cop around any corner waiting to catch you. Let the cops catch them instead of you.
'11 BMW E92 ///M3 - ZCP and DCT
'15 Ford F-250 - Lariat, 6.7 Powerstroke Turbo-diesel