Whilst I suspect most hogs are hibernating by now, it isn’t unusual for there still to be some left out and about. I have found that the hoglets tend to go latest and I still have two visiting here. There is, also, the occasional hog who decides not to hibernate at all. Last year one here didn’t. He had made a very elaborate nest but he only used it for over-day stays and then not every day.
Having said that, I wouldn’t like to guarantee that cats can’t get into your feeding station, unless you have gone to great lengths to prevent them. The cats here are very resourceful and seem quite able to get into the usual feeding stations and eat the hog food cats aren’t supposed to like!