I don't have air craft that flys over my location, maybe you will see a personal air craft once every 3 years, or ballons every 4 years. Very rural area where I live. Reread my post, I wasn't shining it across the road at low levels, it was high up right above the utility wires. Unless you are pointing it straight up into the nights sky, chances are these high powered lasers will have their beam travel over roads seeing how long of a range they have (provided there aren't any trees obstructing the beam). Furthermore, seeing I live in a rural area, and usually you will see one car travel down the country road abour every 30 mins or more, there is no concern for a car coming to a stop and standing idle on a road. People here are already in tuned with the white tails runinng across the roads and drive slower at night.