It is an unfair labor practice for a labor organization or its agents to:
(1) restrain or coerce:
(a) employees in the exercise of the right guaranteed in 39-31-201; or
(b) a public employer in the selection of a representative for the purpose of collective bargaining or the adjustment of grievances;
(2) refuse to bargain collectively in good faith with a public employer if it has been designated as the exclusive representative of employees;
(3) use agency shop fees for contributions to political candidates or parties at state or local levels.