In the event the State of Georgia or any agency thereof or any political subdivision of this state owns any real property affected by the provisions of Code Section 12-5-150, it shall be the duty of the person or persons having immediate supervision of such real property to comply
with the requirements of Code Section 12-5-150 but the expenses involved in so complying shall be borne by the state agency or the political subdivision owning such real property, as the case may be.