I wouldn’t check tonight. It might be easier to move things without harming a potential hog when you can see better. It might be just as well to check, especially if there are hay nets, etc. in case it’s got caught up. But I suppose it’s possible a hog has decided to hibernate there, so you’ll need to be a bit careful. if it’s hibernating it shouldn’t be disturbed. Although not sure whether you meant it was in the outhouse or in the yard. If in the yard, I think I would leave it be. (unless it can get trapped in something) It might have gone in there temporarily and move out when it gets the chance.
I wouldn’t let the dogs near to it. Dogs can cause fatal injuries to hogs if they bite them and also if the hog rolls up, it could injure the dogs mouth.
It’s unlikely a hog will be tempted out by food whilst you are there. Although it might come out for food (dog food, not sausage) but it might take quite a while – in other words when it feels like it – it could take hours. Not like a cat or dog would behave.
Sorry not easy to make suggestions when I don’t really know the layout, contents, etc. but hope that helps a bit.
If someone’s being digging holes for drains, etc. Make sure no hogs have got trapped in any holes in the ground.
