So I live right on the edge of the park ( 5-second walk from door to park). I have called all the numbers listed in this app and always left a voicemail. I do question the phone numbers listed, but I have called them. The only location I worry about is Albany Medical. It is a five-minute walk from me. I heard the helicopters all the time and they I yet to fly over the park. Not to say they will not. But when I hear them and I look all around me for them. The closest I can to a helicopter was the two News choppers this past Sunday. They were filming the Tulip Festival. I was at or below 250 feet high, and they were at about 600-700 feet high and about 600-700 feet away from me. And after 2 minutes of me flying with them in the air, I landed my Mavic packed up and went home. Even though I was there first, I got to respect them. They have larger toys than I.