I was droning down a nearby interstate Monday of this week going a speed that pretty closely matched the prevailing speed of surround cars in the left and middle lanes (right lane slightly slower) but not necessarily staying below the posted 55 mph speed limit. In the middle lane, I was very gradually creeping up on a blacked out Dodge Charger when the thought passed through my head that this could be an "unmarked" cop car (unmarked being no visible lights, antenna, but with a standard license plate, etc....a black Dodge Charger "IS" marked) The windows were darkened to the point that you couldn't see in from the side or rear. I decided to relax my pace just a bit.
Less than a minute later an out-of-state vehicle in the left lane passed me going not more than single digit mph faster than me. But I guess that little bit of speed, being out-of-state, and whatever other criteria the po po was using, prompted this "unmarked" car to light up this guy.
I agree with what Brick said; let someone else pass and be the cop magnet. In thinking back to most of the tickets I've received in my life (I've gotten a few, but not too many), I was generally out in the open where there was no one who could pass me and be the magnet. There's no guarantee you won't get picked out of a string of cars for a citation, but I think the odds are lower if you are embedded in the traffic mix rather than standing out by your actions. Naturally, YMMV, and every situation is different.
Back to the topic of this thread, I agree with Jim regarding the Vintage Motofest. We've got a good group of vintage enthusiasts in Knoxville (I try to be one, but most of my bikes are just "old"...not collectible).