The show is obviously scripted and fake as producers admitted years later. In Oklahoma if you're arrested for a DUI no matter your BAC (Blood-Alcohol Content) you have to spend time in the County Jail and you won't be released immediately even after posting bail (which the show describes).
Ashley Norman appears on the show and admitted she was pad $50 to be on the show as her "arrest" on the show is fake. She has previous Drunk Driving arrests in Oklahoma and was recently arrested for for armed robbery with a known sex offender Dustin Hoots.