The provisions of Sections 16-7-110 and 16-7-120 shall not affect the following:
(1) Any person wearing traditional holiday costume;
(2) Any person engaged in a trade or employment in which a mask is worn for the purpose of ensuring the physical safety of the wearer or because of the nature of the occupation, trade or profession;
(3) Any person using a mask in a theatrical production or masquerade ball; or
(4) Any person wearing a gas mask prescribed in a civil defense drill or exercise or in an emergency.