No person shall block, impede or obstruct any entrance, exit, or approach to any hall, church, school or other public place or to any place of business in such manner as to unreasonably prevent, hinder, delay, obstruct or interfere with the free passage of any other person who is entering, occupying or leaving any of the aforesaid places, or who is performing any service or labor, or who is seeking or obtaining employment, or who is purchasing, selling, delivering, transporting or receiving any goods, wares, merchandise, services, entertainment, accommodation or articles, or who is attempting or seeking to do any of the foregoing, provided that nothing contained in this section shall apply to lawful picketing.
(Prior code § 16.18)