The other day I was driving down the freeway. I saw what appeared to be a cop in the so I slow down. Didn't think much of it, after I passed him a few times I didn't see any evidence on the inside of radios etc and they guy didn't look like a cop. But the lights in the rear seemed strange, is it legal to have them? He had a normal California plate (I whited the number out) Take a look and let me know if this guy was posing.