It’s lovely to hear your hog story, but sad to hear about the fatalities. I think I would have done the same as you if I had found one of my hog visitors had been run over.
Sounds like you are doing a good job trying to get more hog holes. That’s the best way to keep them off the roads.
Good luck with the hogs this year. I hope your hog visitors have lots of hoglets to boost the numbers.