No Jumping to conclusions. Read my earlier post and you'll see I already made suggestions in that regard, to which the OP already responded that he had already looked into it.
As far as I am aware, the Agcat has been dropped in favor of the more...
Well, you've done your part in gathering information. You should call your nearest FAA Field office and report it. It's very odd for him to be flying such aircraft and in such manner, being so far from any workable area (those things aren't cheap...
That is a photo of an AgCat agricultural aircraft. I don't want to make assumptions, so I'll point out that the person flying it is most likely a commercially rated pilot and is in the performance of such operations that ARE allowed by the FAA...
Better not own a driver's license, telephone, credit card, drive on a US Interstate highway, have a mortgage or a lease, or order anything online.
I would be more concerned about rogue data brokers selling personal identifying information online...