There are commercially available systems for jamming speed measuring lidar used by police.[0] Although I am unsure if this would disrupt a line scanning lidar

There are commercially available systems for jamming speed measuring lidar used by police.[0] Although I am unsure if this would disrupt a line scanning lidar [0]https://en.wikipedia.org/wiki/Laser_jammer https://en.wikipedia.org/wiki/Laser_jammer