It's not my impression that self driving cars simply try to copy what a human does in any case. The AI don't violate speed limits and generally try to drive with as little risk as possible. Humans drive very differently.
You might be thinking of Google's self driving car which seems like it was designed from the ground up with traditional programming. I am thinking of system's like Comma.ai's which use machine learning to train self driving cars, by predicting what a human driver would do.
Of course you can put a regulator on the gas pedal and prevent the AI from speeding. But other issues are more difficult to control. How do you enforce that the Ai should "try to drive with as little risk as possible"? We have very few training examples of accidents, and we can'...
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