And so did he, he discovered - in the emergency kit I insisted he have put in his car. Let that be a lesson to you all. You can never be too prepared and emergency kits work at home, too.
Short version: Instead of taking my car to work (I have the all weather tires and all wheel drive), he decided to take his car in case I decided I wanted to go somewhere. Only, his car hasn't been started in almost two weeks. Dead battery.
I was up and helping in short order.
All is well now.