A written meet and confer agreement ratified under this subchapter preempts, during the term of the agreement and to the extent of any conflict, all contrary state statutes, local ordinances, executive orders, civil service provisions, or rules adopted by the head of the law enforcement agency or municipality or by a division or agent of the municipality, such as a personnel board or a civil service commission.
Tex. Loc. Gov't. Code § 142.067