It's definitely a gray area. But there is a huge difference between a court order requiring you to comply with unlocking your phone and a cop demanding to acces

It's definitely a gray area. But there is a huge difference between a court order requiring you to comply with unlocking your phone and a cop demanding to access your phone at a traffic stop. Zion the latter case, did you comply or not? Did you use the wrong finger or not? Did you intentionally resist or did the sensor fail to work properly/efficiently? Those are extremely difficult things to prove layer in court.