The way that technique is currently used, it takes bazillions of sample points from carefully-orchestrated survey flights, and it's looking for megastructures,

The way that technique is currently used, it takes bazillions of sample points from carefully-orchestrated survey flights, and it's looking for megastructures, walls and roads and things many orders of magnitude larger than the individual trees. It's not going to help you find a single vehicle since that could be a single fallen tree, etc, there's a lot of noise in the signal.