If you get caught by the police you have a human to reason with. "Listen officer, I have all the paperwork right here I simply haven't gotten it to the DMV yet because today is a weekend and they are only open weekdays".

I don't live in western Europe (thank god) so the police here don't impound people's means of personal transportation at the drop of a hat so you get the same fine the camera would have handed out with the opportunity to get out of it if you are genuinely being reasonable.