Ok six hours later and haven't found him.

How long until the meat spoils? It's probably 50 and cloudy. We got some rain, lightning, and hail. It's clearing now but still cloudy.
We've done 150-200 yard radius pretty good. Weren't back there until 2.5 hours later. Mainly focused on the direction he was goIng, which was slightly uphill. I walked up to the spot of the shot 10 minutes after the arrow let lose. I did not attempt to track at that point. Just looking for blood. Fo t think I spooked him. He was pretty chill after the arrow found it's home. Almost too chill.perhaps I got in between the heart and liver and no vitals? Need to expand?