Almost had to be. IF there were ONE undrugged person there they would have saved the rest. And it's hard to freeze to death even when you're blotto drunk. And impossible to sleep for two days.
I have read of a fair number of people freezing to death because they stumbled around outside until they fell down and passed out drunk. All the cases I recall were in much colder temperatures, or significant wind, often a fair amount of snow or falling through ice into cold water.
Ha! Tell that to someone just returning from Ranger school.....