Not being sarcastic but how would LIDAR help here ? Maybe .... before acting on a Stop sign sensed by the cameras the control system would confirm, via LIDAR,

Not being sarcastic but how would LIDAR help here ? Maybe .... before acting on a Stop sign sensed by the cameras the control system would confirm, via LIDAR, there is a post with a plate mounted on it in a position which corresponds to where the camera thought it saw a Stop sign ? Can LIDAR do that level of sensing, ie unambiguously find a metal post/plate out of all the other stuff which might be in front of the car ? And assuming my guess about how LIDAR would help is correct what happens when an obstruction between the car and the Stop sign means that LIDAR can't 'see' the post but the cameras can see the sign ?