same here, i remember one time when i was going down the road there as a car next to me and its like he wouldn't move past me and i kept on hearing a strange noise so i slowed down, so it seemed like he slowed down turned down the radio still couldn't tell if it was me or him so i ended up just stopping on the side of the road real quick waited for all the traffic was gone and then started driving again to find out it wasn't me... talk about being paraniod lol