Driving on Oklahoma turnpikes is about to become more expensive for those without a PikePass. The Oklahoma Turnpike Authority this month approved rate increases of at least 75% for non-PikePass drivers on the Turner, Muskogee, Will Rogers and Indian Nation turnpikes. Rate increases come as cash pay systems are converted to the PlatePay system, a process that began in July 2021 with the Kilpatri...