Is GM police autoban on crack?

Typical. You'd have to actually submit screenshotted evidence or something in order to prove to nexon that you can lift your ban. Otherwise, they'd be forced to assume that you're just a regular hacker and that the autoban caught you. (Though the autoban never catches the usual hackers lol)

I suggest you try contacting a GM. They'll be more of a help to you than the ticket system.