A.   Nothing in this Chapter shall be construed to prohibit the sale of any kind of fireworks to a person holding a permit from the City of Hardin at display covered by such permits, the use of fireworks by railroads or other transportation agencies for signal purposes or illumination or when used in quarrying or blasting or other industrial use, or the sale or use of blank cartridges for a show or theater, for signal or ceremonial purposes in athletics or sports, or for use by military organizations or organizations composed of veterans of the United States armed forces.
   B.   This Chapter does not apply to toy paper caps containing less than one-fourth (1/4) of a grain of explosive composition per cap, to the manufacture, storage, sale, or use of signals necessary for the safe operation of railroads or other classes of public or private transportation, to the military or naval forces of the United States or this State, to peace officers, or to the sale or use of blank cartridges for ceremonial, theatrical, or athletic events.