"Nude Model Studio" means any place where a person who exhibits specified sexual anatomical areas is to be observed, sketched, drawn, painted, sculptured, photographed, or similarly depicted by other persons who pay money or any form of consideration. A Nude Model Studio shall not include a proprietary school licensed by the State of Ohio or a College, Junior College, or University supported entirely or in part by public taxation, a private college or university that maintains and operates educational programs in which credits are transferable to a College, Junior College, or University supported entirely or partly by taxation, or in a structure provided such institution meets all of the following criteria:
(a) There is no sign visible from the exterior of the structure and no other advertising that indicates a person exhibiting specified sexual anatomical areas is available for viewing; and
(b) In order to participate in a class, a student must enroll at least three days in advance of the class; and
(c) No more than one person exhibiting specified sexual anatomical areas is on the premises at any one time.