An applicant may purchase a vehicle license plate or revalidation decal by mail, by mailing a properly completed application form to the tag agent of the county of his residence along with a money order in the amount of the license fee and all ad valorem taxes due thereon plus an additional fee of $1.00. The governing authority of the county may by resolution authorize the tag agent of the county to receive application and payment for the purchase of a license plate or revalidation decal by mail without charging the additional $1.00 fee.