1. If a proposed boundary change is approved by the voters, such proposal shall be effective six months following the date of the election or the date specified in such proposal, whichever date is later. Immediately following the certification of the election, the commission shall establish a committee to determine the details of the transition. The governing body of each affected municipality shall select two members and the governing body of the county in which each unincorporated territory is situated shall select two members from the affected unincorporated territory to meet with similar members appointed from other affected municipalities and the unincorporated territory. The committee shall disband no later than the date the boundary change becomes effective. The governing body of the county may delay declaring a newly incorporated municipality for a period not to exceed six months at the request of the boundary commission to provide for an orderly transition from unincorporated to incorporated status.

2. If a conflict shall exist between the provisions of sections 72.400 to 72.423 and the orders, ordinances or charters of any statutory or charter cities affected by sections 72.400 to 72.423, the provisions of sections 72.400 to 72.423 shall prevail.

3. If a boundary change involves an annexation, failure of the proposing agent to provide services to the area being annexed or to zone in compliance with the plan of intent required of the proposing agent within three years of the boundary change becoming effective, unless compliance is made unreasonable, shall give rise to a cause of action for deannexation which may be filed in the circuit court by any resident who was residing in the area at the time the boundary change became effective.