THe FPV that has been showing up at our field is far from a store bought quadcopter. It is on a radio frequency that gets crazy range and full feedback, VHS I think. He admitted to me that he waits till nobody is around to fly, because he knows he is breaking the rules. Both of our club and the AMA.
I am not sure that those $100 store bought jobs are as much of an issue, as they do not have the range.