Report him to the CAA, especially if you got the tail number and video of it, they have a dedicated department that investigates this stuff and can suspend or ban pilots.
If I didn't know better I'd say this was being deliberately done, we've had several incidents around here lately of low flying aircraft and helicopters including one that buzzed the housing estate at less than 250 foot with an AW12 (a frigging huge copter) and the same guy nearly hit a drone last week about 5 miles west of here. I've got so pissed off with it that I have taken to emailing the local Air Traffic Control with details of where I am flying and when and reminding them that it is their legal duty to ensure aircraft in this area are made aware of the UAV operations and maintain at least 1000 feet altitude.
My attempts to try and negotiate with the SATCO have fallen flat, he no longer responds to my requests for an annual exemption to operate just inside his FRZ (put in writing with detailed maps as he tells people to), and has done the same with the three or four other model flyers that use this copse, everything was all friendly and helpful, right up until the day the law changed then we've all been met with a wall of silence.
The stupid thing is, the field next door, is outside of the exclusion zone, so I can legally fly there whenever I want, so I've taken to emailing them when I fly there, and I make sure I make it clear that I am not asking permission nor am I legally obliged to inform them of my plans and that I am only doing so with the hope of future co-operation.
I have never received a reply either from the SATCO or control tower, but suprise suprise, when I'm flying there, the planes and helicopters give the area a wide berth. Originally I would not give two hoots, but my attitude is now we're being held to some crazy high standards, so I'm going to hold them to their standards too now.
This is a small "aerodrome" whose only real busy period is weekends, contrast that "co-operation" with Gatwick and Heathrow, who have gone out of their way to help the clubs now falling in their FRZs. Tells you enough that does.