The owner of any enclosed shopping mall or retail business with more than fifty thousand square feet of floor space, shall install, in at least one of the primary entrances, doors that are automatically activated to provide access to persons with physical disabilities, provided the State Building Inspector may grant an exemption from such requirement where strict compliance would entail practical difficulty or unnecessary hardship. The State Building Inspector shall electronically publish such waiver on the Internet web site of the Department of Administrative Services. Nothing in this section shall require the installation of an automatically activated door in a primary entrance which is open and unobstructed by any door during the hours the retail business is open to the public.