I think a charge of simple assault would be enough. A law enforcement official pointing a laser at someone, especially when that someone cannot see who it is, is a pretty dire threat, even if it doesn't carry any followthrough. It's not a lot different from pointing a pistol. If the person can clearly see that the dot is being generated by a laser pointer, the use of it is not effective.

Don't get me wrong. If the officer has legal cause to pull his pistol, I don't see any problem with using a laser, but the quote seemed to have been about "aggressive driving". Maybe, in context, that means something other than what I think it means.