I had a Driver Supervisor give a pre-shift regarding no lunches some time ago. He asked, but did not require, drivers not request "no lunch" at the end of the day. His theroy, was if you walked out the door, after requesting no lunch, you might still be considered, "on the clock", and could, if injured, say in a car accident on your way home, the accident could be considered an OJI, which the company would be on the hook for your injuries. That was just his personal viewpoint.