I recovered a Mac Mini that I had stolen from me in September. I had used Find My iPhone to lock it and display my phone number. Now that I have it back I can't figure out how to unlock it. I turn it on and right away it says "your password was entered incorrectly". I restart it and it says "Your Mac has been locked, try again in 60 minutes". Something to that extent anyway. Find my iPhone just says "locating". I don't see how I'm supposed to unlock it. Anyone know what I need to do?