Yup, I'd just be patient. Lots of deer season left, and there's still the yearling does that will come into heat in December, as well as some unbred does that will cycle again in approx 28 days (think opening few days of Alt. Weapons season)... and if it ever decides to get cold, they will be on the food as often as possible. Hunt him over travel routes going to / coming from the food, and be patient. I bet you'll get him before it's all over.