(a) A municipality disannexing a road or highway shall also disannex a strip of area that is equal in size to the minimum area that the municipality is required to annex in order to comply with the width requirements of § 43.054 unless such disannexation is undertaken with the mutual agreement of the county government and the municipality.
(b) The strip of area to be disannexed must:
(1) be adjacent to either side of the road or highway; and
(2) follow the course of the road or highway.