Pat,
I said that I check my phone while I'm on my home course and/or playing some courses in the Twin Cities.
There have been plenty of times in which I have left my phone in the car or had it off in my bag. In those situations, the golf is planned in advance, I have put myself in a position in which people at the office know I'm going to be out of pocket for several hours and won't be able to be reached. Obviously if I'm at a club where phones are banned, I'm not using my phone.
That's very different from playing in the late afternoon/evening on a work day.