I would think that the LEO camera would prove the vehicle in question. Perhaps some police units don't have cameras?
Semi-related topic. How many times have you been pulled over by LEO while on the bike, and of those, how many times were you given only a warning?
Pants is batting 1000. Since my return to motorcycling in August 2009, I've been pulled over 4 times - each for speeding around 10-15 over. Not riding like a squid, mind you. Just running a tad too quick for the LEO's liking. Three times by a State trooper, once by a Sherriff Deputy. Each one asked for papers and I complied. In each case, I acknowledged that I was speeding and politely waited for instructions while my clean record was checked. Each time I was asked if I could slow it down, which I replied "yes sir". Each time I was let go without citation.
Recently, I've made a decision to try and slow it down a bit on the bike, but I have to admit it's hard. Especially on a multi-lane highway, I feel safer when I'm running 5-10 mph faster than traffic. Less worry about getting rammed from behind. I've heard that LEO tends to give motorcyclists a little more leeway - any truth to this?
A long time ago, a friend told me she subscribes to the "9 and your fine, 10 and your mine" theory. I think that's good advice.