That's certainly the ideal approach, but I don't think it's realistic to plan for normal people behaving that way. By the time I realized that Google had given

That's certainly the ideal approach, but I don't think it's realistic to plan for normal people behaving that way. By the time I realized that Google had given me a route that would not work, breaking out of it cost me 10 minutes of sitting in traffic going the wrong way. I think most people would take the "drive like a jerk" alternative at that point, because the sunk-cost illusion is hard to let go of. A self-driving car is basically just going to do what the mapping software tells it to as well, so the "bad instructions from tech companies" factor is a problem that needs to be addressed specifically anyway.