Can you change a guilty to not guilty in Az?

Yes, you can.

Up to a certain point, yes. It is not helpful to your defense, though, but if you can successfully defend yourself then it is worth the time.

Never heard of this happening, but I do not believe that it oculd the way you describe. Once the verdict is announced from the bench - THAT is IT! They would have to re-open the trial, or have a...

yes.

You don't plead guilty "on a traffic ticket" unless you post your fine and then fail to show up at the hearing. That is an automatic guilty plea. If you to go to court you may plead not guilty to the...