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Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Trooper Derek Shelby looks for distracted drivers on Interstate 15 Thu Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Trooper Derek Shelby talks to a driver who was pulled over for distrac Chris Detrick | The Salt Lake Tribune A driver uses his cellphone while driving on Interstate 15 Thursday, July 13, 2017. Chris Detrick | The Salt Lake Tribune A driver uses his cellphone while driving on Interstate 15 Thursday, July 13, 2017. Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Lieutenant Beau Mason, left, and Corporal Mark Thompson talk to a driv Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Trooper Derek Shelby looks for distracted drivers on Interstate 15 Thu Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Lieutenant Corey Nye looks for distracted drivers on Interstate 15 Thu Chris Detrick | The Salt Lake Tribune A Utah Highway Patrol trooper pulls over a car after witnessing the driver operating their Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Lieutenant Beau Mason, left, and Corporal Mark Thompson talk to a driv Chris Detrick | The Salt Lake Tribune Utah Highway Patrol Trooper Derek Shelby writes a citation for a driver who was pulled ove