It's the usual case of the tail of a powerful lobby wagging the dog.
I'll bet the way this will play out... it will end up with the government threatening to withhold federal highway funds unless the states comply with a ban. It's a great money maker (Traffic fines) for the states to enforce the ban.
I wonder if they will be as vigorous to change Insider Trading Rule for the millionaire lawyers in Congress?
Insider trading laws do not apply to members of Congress or their staff.
It's a major felony for the rest of us. (Sorry, I'm off topic. Don't get me started)