Anyone charged with an offense that is designated pre-payable may appear in the Criminal Clerk's office, enter a plea of guilty, and pay the fine and costs specified without appearance in Court. Any attorney may appear and enter a plea of guilty and pay a fine and costs or receive the fine slip and due date on behalf of a client, provided the attorney has authority from the client to do so. Any person charged with an offense not pre-payable shall be required to appear to answer the charge in Court and may not be authorized by any person to pre-pay a fine by pleading guilty.