Okla. Stat. tit. 36 § 6661
The Vehicle Protection Product Act applies to all vehicle protection products sold or offered for sale on or after the effective date of this act. The failure of any person to comply with the Vehicle Protection Product Act prior to its effective date shall not be admissible in any court proceeding, administrative proceeding, arbitration, or alternative dispute resolution proceeding and may not otherwise be used to prove that the action of any person or the affected vehicle protection product was unlawful or otherwise improper. The adoption of the Vehicle Protection Product Act does not imply that a vehicle protection product warranty was insurance prior to the effective date of this act. Nothing in this section shall be construed to require the application of the penalty provisions where this section is not applicable.
Okla. Stat. tit. 36, § 6661