Wrong. Authorities (in the UK, at least) have been asked what they'd do in this situation, and if you were going so fast that you only appeared in one frame, you wouldn't get a ticket through the post, you'd get a court summons.
Only for rear-facing Gatsos, afaik.
We already know that your father, brother or anyone else in your family appears to be a retard behind the wheel.
I know, it's a novel concept - worryingly.