O wow! I had something like that happen about two weeks ago! I was getting on the freeway and here the speedlimit is 70 so I go 75..well about 10min later I see a car flying up on my butt im in the right lane so im like umm..okay waiting on them to get over..they just ride my ass so im like umm I don't see lights only one way to find out if its a cop..I floor it I let out at about 90 and slow down just as the COP in a unmarked car passes me looks over at me and pretty much boxes me in between him a big truck until I have to slow down to 70 then he lets me over and I speed back up to 75 passing him..I figure if he wanted to pull me over he had his chance and he didnt! So I go on and get off at my exit pulled over at our local McDonalds to get a movie from Redbox guess who pulls in behind me! He does this slow driveby strange stalker look and I just smile and wave at him! I guess im lucky..but still if your going to ride my ass pull my hair or pull me over!