No person shall cut or sever, or cause to be cut or severed, or interfere with in any manner, any wire of any fire alarm system in the city; or remove or change the same; or cut, injure, change, alter or remove any pole, cross-arm, bracket or other support upon which said wires rest or in which said wires are enclosed; or disconnect said wires or any of them from the gongs, alarm boxes or instruments connected with said fire alarm system; or cause, in any manner, the working of the same to become obstructed or interfered with without being first duly authorized to do so by the Chief of the Fire Department; nor shall any person deface or in any manner injure any of the fire alarm boxes or any instruments or appliances connected with or belonging to said fire alarm system; or tamper with said fire alarm or obstruct in any manner whatever, the boxes, keys or glass upon any of said boxes; or make or cause to be made, without authority from the Chief of the Fire Department, keys to any alarm box or boxes; or to use, or cause to be used, any such key so made; nor shall any person place or fasten over or upon any fire alarm box a handbill, notice or sign of any kind, except the signs places upon the same at the direction of the Chief of the Fire Department and pertaining to the firebox; or cause to be hitched any horse or animal to any pole on which is situated a fire alarm box.