There is no liability on the part of and no cause of action of any nature may arise against any member insurer or its agents or employees, the association or its agents or employees, members of the board of directors, or the commissioner or the commissioner’s representatives, for any action or omission by them in the performance of their powers and duties under this chapter. Immunity extends to the participation in any organization of one or more other state associations of similar purposes and to any such organization and its agents or employees.