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.
Waxing is a method of epilation that removes unwanted hair from the body. If you remove the hair by waxing, it may seem that the hair grows back coarser and thicker. But, while waxing thins the hair, it doesn't change it's growth rate or thickness.