The way I see it, if you know your children are safe, you can turn off your phone until you run your car into a ditch... THAT is a reason to put the phone on and call for a tow...
Keep the phone off... your chidlren are your focus, if you know they are safe, there is NO CALL worth TAKING... YOU can call OUT to a friend, and when you are done, TURN it OFF again.
Or as I said, be with a friend as much as possible and give the phone to tehm to hold onto.. AND keep it off...
I bet even it RINGING gives you a rush because it MIGHT be him.. that's NOT healthy...