A.
No person under the age of 21 years may enter an adult dry nightclub unless accompanied by a parent or guardian.
B.
No person shall falsely represent himself to be either a parent or guardian of another person under the age of 21 years for the purpose of gaining the other person's admission into an adult dry nightclub.
C.
No licensee or employee of an adult dry nightclub shall knowingly allow a person under the age of 21 years to enter or remain on the premises of an adult dry nightclub.
D.
No licensee of an adult dry nightclub shall maintain or operate the premises without posting a sign at each entrance to the business that reads: "It is unlawful for any person under 21 years of age to enter this premises without a parent or guardian." The sign shall be at least four square feet in size and the lettering shall be at least one inch in height.