We all know the five mile rule, however there is a caveat that allows flight in this airspace. It states contacting the airport control tower to notify them where and altitude and such. Has anyone done this?and can the tower refuse as long as there is no flight risk? I don't mean flying in or around runways and approaches, but still within the five mile radius. Before it gets out of hand, yes this is for commercial reasons and yes we have done the 333 exemption. Just trying to arm ourselves with the facts, no conjecture please.