Red Foxes are pretty resourceful and adaptable, so I doubt they're really hungry, beyond the level that wild animals are usually hungry. Moving the animals is really not a viable option; besides the fact that your friends aren't licensed or qualified to do so, relocation seldom works. It places the animals in unfamiliar surroundings that, if suitable, probably already are occupied. If they don't return to their original home, others likely will move in instead. It's a never-ending problem. Why do the neighbors want to shoot them? That may not even be legal. I would suggest contacting your local humane society or animal control service and explaining the situation to them.