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Re:Why you have (probably) already bought your last car by jarfil on Thursday October 11, 2018 @11:41PM (#18199017)
> following verbal or gestured instructions from a police officer or construction worker.

If they don't broadcast it with a valid signature, just ignore them, they're not authorized to give any instructions.

> turn the road system into a closed system

You can turn it into a "closed enough" system, with every vehicle having a radio locator, and everything else being treated as an unknown obstacle... that someone could get fined for putting it on the road.

Re:Why you have (probably) already bought your last car by kbob on Friday October 12, 2018 @04:49PM (#18204616)
You've never encountered a citizen flagging down traffic because of an obstruction just past a blind hill or curve?