You mentioned two examples: (1) an existing fireworks stand that is allowed to operate at the same location although the sale of fireworks is otherwise prohibited; and (2) a sign that was erected in violation of a zoning ordinance but which has never been removed.
New hair will not grow back in the previously waxed area for four to six weeks, although some people will start to see regrowth in only a week due to some of their hair being on a different growth cycle.
Hair grows about 1/2 inch per month. If the rest of the scalp hair is long, it may take months or years before a shaved area grows sufficiently to match the rest of the hair. After shaving, the hair growing back may appear to be thicker and coarser, because the shaving process removes the natural thin ends of the hair. Eventually, the shaved hairs are shed and replaced with normal hair. Scalp hairs may only be shed every two to six years. Scalp hairs grow continuously most of the time.