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I don't have the actual statute terminology in front of me but you get hit with a shit load of charges ranging from Interference of the flight of an aircraft (think Patriot Act charges!) to unlawful use of a distress signal (think fake 911 phone calls)
Better hope that it's only one aircraft because if there was a formation of helicopters, you could face charges for each aircraft (which you most definitely would to send a big message and be on the news).