First time smoking a brisket. Started it last night around 8:00. Went to bed around 11:00 and everything was good. Woke up at 5:30 fire out and everything cold. Apparently I didn't get the alarms set right on my thermometer. I have no idea how long the fire was out and the food was back to 90 degrees. Got the fire restarted and now cooking back around 250 degrees. Question is did I ruin the brisket? Is it safe to eat once I get it done which I understand is 195 to 200? Thanks!