Tesla's speed limit data (in places) is really awful. Why not give users the ability to report errors? E.g., make it so you can press the speed limit sign on the display for a second or two, and then: (1) a question mark gets added at the bottom of the speed limit icon, and (2) Tesla gets notice of the location and reported error. When Tesla gets multiple reports of the same error, it can have confidence that it needs to correct the error — and then correct it. Otherwise, I'm sure cops are learning the "Tesla speed traps" — places where every Tesla will be speeding, and easy targets for tickets.