[jcims]

LIDAR can't reliably see signs from far away and definitely can't read them. It's not clear that there would be any usable signal to act on, especially not one of sufficient confidence to ignore a giant red stop sign in the camera.

This isn't a perception issue. It's an insufficient model for the world, and the software is obviously biased towards obeying critical traffic controls at lower confidence levels. It would be interesting to see what would happen if a (higher) speed limit sign was flashed in the same way.