What about Lidar-equipped (and why not, even cameras) foreign cars that scan every one of the country's roads and everything around them? Cars are increasingly packing this kind of tech and telemetry.
And more properly there is an introduced bipartisan bill - SAFE LiDAR Act.
This ban makes sense if they suspect the enemy is covertly scanning using unsuspecting users' drones. But if they suspect foreign actors are using the drones to scan, well they won't be stopped or slowed down by the ban. Whoever is interested in targeted mapping of buildings and specific areas won't be put off by Lidar drones not being commercially available. Independently Lidars and drones still are, and combining the two for malicious purposes is a no-brainer.