The provisions of this article shall not apply to or authorize the leasing of any tent camping or trailer park facility, except at Camden State Park, nor do the provisions of this article authorize, for a period of three years beginning with the date of the official opening of all newly constructed facilities at said state park, the leasing of the lodge and the food service facilities at the beach pavilion at the state park presently designated as Lake Guntersville State Park. It is further provided that the provisions of this article shall not apply to concession operations at special events at the state parks, which events do not exceed 72 hours. In addition, the provisions of this article shall not apply to state parks concession operations receiving gross receipts of $100,000.00 or less annually.