The tracks look like a smallish bear....good table fare, but nothing close to a trophy. There might be bigger ones in the area.
As for hunting over a gut pile, I think it's your call. Some wardens might get excited, others have bigger fish to fry. If you're worried about it, it might not be worth it...especially for a small bear. The funny thing is, its legal to bait deer in WA, but not bear.
Kurt