Interesting. I don't have a password. And I defy you to unlock my phone. The question is "Can I be forced to unlock my own phone? Under what circumstances? Under what circumstances can I be charged for refusing to do so?" If you haven't already guessed, I use a complex swipe pattern, one that uses all nine points and cannot be determined from reading the grease streaks, at least not easily. I know this because I move…
Yes, yes and yes.
Until there is legal precedent, if they want into your phone and you don't provide them access, you'll be in trouble. Any "cleverness" regarding a security code will likely make it worse.