There shall be no liability on the part of and no cause of action of any nature may arise against the members of the Authority for any acts or omission to act by them in the performance of their powers and duties under this Chapter. The immunity established by this section shall not extend to willful neglect or malfeasance that would otherwise be actionable. The immunity established by this section further shall not extend to any act or omission occurring or arising out of the operation of a motor vehicle. The immunity established herein is waived to the extent of any indemnification by insurance for the liability of the members of the authority for which this act otherwise provides immunity. (1987, c. 335, s. 1; 1989, c. 500, s. 109(e); 1989 (Reg. Sess., 1990), c. 1074, s. 32(b).)