No person holding a license for the sale at retail of alcoholic liquors, including beer, shall sell any such liquors or conduct any of the business for which such license is required in any room or premises not provided with a public entrance at the front thereof, opening upon a public street and no person holding such license shall permit the use of any entrance other than such front entrance for any purpose other than the use thereof by the licensee, his family or employees or for ingress and egress by other persons for the purpose of lawful labor or business other than the purchase at retail or the consumption of alcoholic liquors.
(1964 Code, § 3-8)