For a second I thought "self-ruling" = driven by one of those sovereign citizen idiots. You know, the kind that think they don't need license plates or to pay tickets because they are nations unto themselves. In which case it's almost a ghost car in that it's not guided by an intelligent life form. Then I saw the board.

I have yet to encounter an self-driving car (not yet legal in Canada) but it probably feels wild driving near one.