As a driver the arguement for lack of willingness to use a personal phone is elementary, absurd, and ridiculous.
Sure, UPS does not provide you with a cell phone but they pay you enough hourly to own one. Oh wait, is this 1996 when you have to pay roaming costs or minutes usage? I think not unless you are on the cheapest of cheap prepaid plans. More than likely you have unlimited minutes and texting throughout the US.
If you want to run up the clock and play games have fun. I will use my phone to my advantage to make calls, use gps and do what the

I have to do to get done and see my family.