This chapter shall not be construed as:
1. Prohibiting an airport, aviation authority, or municipality from administering and enforcing airport zoning pursuant to the provisions of chapter 329 for the protection of navigable airspace.
2. Infringing upon the jurisdiction of a commission, as defined in section 15.445, to approve or deny applications for proposed alterations to exterior features within an area designated as an area of historical significance.
3. Infringing upon the jurisdiction of a city or county, or any other entity authorized by statute, to approve or deny applications for proposed alterations to exterior features of designated local historic landmarks.