Receipts from the sale of automotive service contracts and from charges for transfer services (document fees) are not covered by the exemption provided by Section 7-9-22 NMSA 1978 and shall not be included in computing the tax paid under Section 7-14-4 NMSA 1978 on the sale of the vehicle since the receipts are not "price paid for the vehicle" as required by Section 7-14-4 NMSA 1978.
N.M. Admin. Code § 3.2.109.12