Interesting Bits Inside Your Euro..

[Tobster]

The police car was parked about 500m roughly saw the reflection, slowed down, then, to my amazement saw the green beam he or she was pointing at the cars that where approaching.

It was green this beam and was very accurate, watched the beam move from car to car.

I would suggest that it wasn't your lights -- light won't show up light. I imagine it probably would have been a bit misty -- you need particles in the air (mist, smoke, dust) to show the laser beam. It's why nightclubs use smoke machines -- so the lights make interesting effects.