I doubt that the police will be very interested in processing a change of address, nor is it likely to matter if you try as the report has probably already been passed on to a prosecutor in relation to the charges. If charges have been filed you should be able to register a change of address with the court, but make sure you use an address where you are confident that you will receive your mail.
You're going to have to face your charges in the county where you were charged.

