If you want to keep them around the area then set up a bait station/feeder, do a search for wild hog bait, lots of different recipes and ways to bait them and keep them coming around, just be careful what you wish for !
Did you shoot them. That would be a good start. Build a corral style trap or offer to let a couple responsible folks to help out. A sow will have a litter about every 4-5 months so it won't take long to be overrun with them
go on YouTube and their is plenty of info on hog traps and how to build them. As far as bait, to get them in quick get you a five gallon bucket, fill it 3/4 of corn then full with water, put a lid on it and sit in sun for a couple of days. Put it where you want it, inside trap preferred, and hogs will come. Once they are there strait corn will keep them coming back.
Do they move around during the day light? I have time to hunt them if I could find them! I have deer hunted here 28 years and this is the first time I have seen them.And it many...Thanks for info. Guys..