If you want to be rid of the coyotes, and hunt or have a friend who hunts: set out a fish or if you don't have that, several open cans of tuna in an open area close to a hide and kill the leader as well as any more that arrive. At twilight, the coyotes are spotted most often. If they have large enough numbers they'll brazenly roam in broad daylight. It's legal to shoot coyotes on your own property in GA especially if they've been aggressive toward humans and pets.
Glad he called the two dogs back; sometimes the coyotes will lead them back to the pack and ambush them. Coyotes are near the top of the IQ ranking of wild land animals.