I saw a waymo go in a nonexistent rightmost lane at a stop light, I thought it was going to turn but it instead proceeded to go forward and force the driver in the actual rightmostlane to break to allow it to merge else it would have caused an accident as there was no lane in front of it.

This was on El Camino in Santa Clara. I was highly suprised as I was under the assumption they were pretty much production ready as they have been expanding their area a lot.