Notwithstanding any other law, if a municipality (other than a municipality that participated in the reorganization of the unit under IC 36-1.5) annexes territory within a unit described in IC 36-7-2-1(b) after the unit has established an advisory plan commission under this section, the municipal plan commission of that municipality may not exercise planning and zoning functions within that annexed territory.
IC 36-7-4-202.5