I put a 13 pound brisket on the smoker at about 12:30. I checked it at about 2:45 and it was good. In my sleepy daze I thought I was getting back up at 330 instead of 430. So I figured even the though charcoal was getting low it would be fine for the next 45 minutes so I threw a couple chunks of wood in and went back to sleep. I woke up at about 4:40 and the fire was completely out. It was probably in the danger zone for about an hour plus another half hour to get the smoker hot again. Do you think it's still ok to eat/ serve? Any help would be greatly appreciated. My meat thermometer broke so I don't know if it got up to 140 but let's assume it didn't.