Before a fence (other than a temporary one) shall be erected, a zoning permit must be obtained from the Building Inspector. A request for a permit shall be accompanied by a site plan which shall show the height and location of the fence in relation to all other structures and buildings and in relation to all streets, lot property lines and yards. These restrictions shall not be applied so as to require a permit for, nor restrict, the erection, alteration, or reconstruction of fences for agricultural uses on farms or temporary fences (i.e., snow fences, garden fences, etc.), provided such temporary fences shall not exceed four feet in height, shall be at least 50% open construction and shall not pose a hazard to persons or traffic circulation. A temporary fence shall be removed once it is no longer being used or is necessary for its intended purpose.