a. Permit a bed, sofa, mattress, or similar item in any room on the premises, except that a sofa may be placed in a reception room open to the public or in any office to which patrons are not admitted, and except that in an adult theater such items may be on the stage as part of a performance;

b. Allow any door in any room used for the business (except for the door to an office to which patrons shall not be admitted, outside doors, and restroom doors) to be lockable from the inside;

c. Provide any room in which the employee or employees and the patrons are alone together without a separation by a solid physical barrier at least three (3) feet high and six (6) inches wide, the patron or patrons shall remain on one side of the barrier and the employee or employees shall remain on the other side of the barrier;