An act, failure to act, or decision of a procurement officer or a representative of a unit, concerning a payment dispute between a contractor and subcontractor or supplier under this chapter, may not: Affect the rights of the contracting parties under any other provision of law; Be used as evidence on the merits of a dispute between the unit and the contractor or the contractor and the subcontractor or supplier in any other proceeding; or Result in liability or prejudice the rights of the unit or a prime contractor that acts as a representative of a unit under Regulation .06C(3) of this chapter. A decision of a procurement officer or a representative of the unit designated by the procurement officer under this chapter is not subject to judicial review or the provisions of COMAR 21.10.04.