Wash. Rev. Code § 48.22.135
The failure of a secured party prior to January 1, 1995, to provide notice as contemplated in this chapter, or otherwise to administer a vendor single interest or collateral protection coverage program in a manner similar to that required under this chapter, shall not be admissible in any court or arbitration proceeding or otherwise used to prove that a secured party's actions with respect to vendor single interest or collateral protection coverage or similar coverage were unlawful or otherwise improper. A secured party shall not be liable to the borrower or any other party for placing vendor single interest or collateral protection coverage in accordance with the terms of an otherwise legal loan or other written agreement with the borrower entered prior to January 1, 1995. The provisions of this section shall be applicable with respect to actions pending or commenced on or after June 9, 1994.
RCW 48.22.135