It is found, determined, and declared that the creation of the authority and the carrying out of its corporate purposes are in all respects for the benefit of the people of this state and are public purposes and that the authority will be performing an essential governmental function in the exercise of the powers conferred upon it by this chapter. The authority shall be required to pay no taxes or assessments upon any property acquired or under its jurisdiction, control, possession, or supervision or upon its activities in the development, construction, operation, or maintenance of any of the projects or facilities erected, maintained, or acquired by it or any fees, rentals, or other charges for the use of such facilities or other income received by the authority and shall not be subject to regulation of its activities in the acquisition, development, construction, operation, or maintenance of any of the projects or facilities acquired, developed, constructed, operated, or maintained by it by any county or municipal corporation of this state. The exemption from taxation provided for in this Code section shall include an exemption from sales and use tax on tangible personal property purchased by the authority for use exclusively by the authority. The revenue bonds or other evidence of indebtedness issued by the authority, their transfer, and the income therefrom shall at all times be exempt from taxation within this state by the state or its municipalities or political subdivisions.