Seems silly. Just attach the ticket to the car itself and then the registered owner can handle obtaining payment from whoever was driving the car.
If the registered owner wants to claim that someone stole their car or was operating it without permission then there can be some very hefty punishment for making false statements if it can be proved that it was actually the owner in the car.
I believe the issue is that moving violations often give you points on your license. If it was just a fine I think they could put it on the car, but because the of the potential loss of a license they need to actually have evidence of a person committing the violation.
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