How well do Lidar systems work when there are 5, 10, 20, 50 cars with Lidar units all in a small area (like a busier intersection in my smallish town)? I wonde

How well do Lidar systems work when there are 5, 10, 20, 50 cars with Lidar units all in a small area (like a busier intersection in my smallish town)? I wonder if Musk has done some tests of this sort of scenario and that is what he is basing this judgment on?