All final audits provided for in Code Section 31-7-91 shall be reproduced in sufficient number and copies of the audit shall be filed with the clerk of the superior court in the county where any hospital is operated by a hospital authority and in the office of the clerk of the superior court of any county that is a participating unit of the authority. In the event any hospital is operated by a municipal hospital authority, the audit required by this Code section to be filed with the office of the clerk of the superior court shall be filed in the office of city clerk, clerk of council, clerk of the board of aldermen, or clerk of the governing body of the municipality, in lieu of being filed with the clerk of the superior court.