Yesterday I smoked a 10 lbs butt on my 18.5 WSM. It stalled at 165 and took FOREVER to reach 195. At 165 I had wrapped it in foil. At 195 I pulled it out, wrapped in a towel and put it in a cooler...with the intention of waiting about an hour and pulling it. Well, it was getting kinda late and I fell asleep...woke up 5 hours later. I figured I had just wasted 10 lbs of meat, but got up anyway to check on it. The internal temp was 143. I am going to pull it anyway, but will it still be safe to eat? Thanks guys.