nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqpsdfxfpxz2cwmmnsk60y3nqpn2tqh9n24h4hstvfkwvr6eaek9jsfy5n8f (nprofile…5n8f) Rules of the road quite clearly state that you must be able to stop in the length you can see *at any time*. If the car was going faster than sensor distance / breaking time, it was breaking the law.
And, fun fact, since it was obviously programmed to do that, it wasn't just breaking the law at the time it crossed the speed threshold, but from the very beginning.
An autonomous car that is even capable of hitting a stationary target is not street legal, by definition.