This is a common problem that is only getting worse. The FCC has only a few frequencies that are given away and can be used by remote control devices. As more and more items are remotely operated, its a statistical issue. With more remote controlled devices being built, the same frequencies up for grabs, sometimes the same remote frequencies are used in close proximity to each other.
If you want to have some fun sometime, drive down through surburbia and keep pushing the button on your garage door opener. Sooner or later it will open someones garage door. The same can be done in a parking lot full of cars. Sooner or later you can unlock the doors of some one else's car. I learned this when I went to remotely unlock our Toyota Highlander. The locks on a Game Warden's pickup opened that was right next to mine. In the latter case this was kind of scary because there was some guns inside the truck.
The local Ham Radio club here in Waldo County is downright scared of this trend. With the Ham Radio clubs members dropping in number, their average age increasing, they are worried that the FCC will soon look to add more frequencies that are available for remote controlled devices and other uses. They will certainly look to grab the less used frequencies. The Hamm Radio Club is down right scared that they might grab some of their frequencies since they are not used as much.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"