Holey hubris, Batman! I bet there will be large dark zones on the AV's maps, where they dare not go, for reasons they cannot comprehend with their own sensors.
Then I expect they won't be going to those large dark zones. I largely agree with his comment. It's not that we shouldn't do anything. (If it makes sense to make lane markings a bit wider, why not?) But if we really need to change large parts of infrastructure to accommodate automated vehicles, that's a non-starter just as it was when that sort of thing was discussed in the 1960s.
California already has made massive infrastructure changes from streetcar removal to building BART.