Finally got to the article.
I guess a week seems reasonable. I mean, didn't the Navy just call off a search for sailors after something like 24 hours?
Still, I would hope my family would be out doing something. I hope my wife (and parents) would say something like "he's done a week before in the wilderness. He should still be OK." They know I don't go on a dayhike even w/o 10 E's and water filter or pills.