(1) Except for the consequences of deliberate wrong doing, neither an appointing authority nor an arbitrator is liable for any act or omission in connection with an arbitration.

(2) A party’s right to arbitration is not waived because the party has initiated judicial proceedings in relation to the subject matter of the arbitration.

(3) An appointing authority or the arbitrator is not a necessary party in a judicial proceeding relating to an arbitration.