GrapheneOS duress PIN could land a man in prison

My understanding is you can’t actually be forced (legally) to give up your phone’s PIN or password as part of a police search, because it violates the 5th amendment against self-incrimination, even at the border. Now will they still find a way to fuck up your day if you refuse to unlock your phone, sure, but I feel like saying “I have a right under the 5th Amendment to not reveal my password” is going to be a lot easier to defend than “I intentionally wiped/locked/bricked my phone when you asked to look through it.”