Just a reminder, that under US law, the 5th amendment only applies to passwords (what you know), and not biometrics (what you are). If you choose to use FaceID, thumbprints etc, the government can force you to unlock your device.
that's easy to do if you're driving a car and you get pulled over, but what if a cop stops you on the street? reaching into your pocket is asking to get shot.
The one that does is to rapidly press the power button 5 times.