First off, this situation sucks hard.

Second, I believe that, so long as what you said is true (and I don't have much of a reason besides not personally being there to doubt that it's the truth, considering this post is anonymous...) I think you'll be fine if you contact a lawyer, or perhaps FIRE, as others have mentioned.

Third, although i don't know your parents and don't know their personalities, I sort of know where their anger is coming from... although it IS blown WAY out of proportion. Remember, it WAS an authority figure that told them you said those things. People tend to believe authority figures. Emotion can do really weird things to a brain that doesn't know how to control it well, too.

This might be really, really hard... But, if you can manage it, give it a try...

Try letting them calm down first, maybe waiting a day or 2 to let them cool off... Then, try to have a family meeting. Plan ahead of time what you're going to say so that you can keep as relaxed and mild tempered as possible. Write down exactly what happened without exaggerating anything, as if you were in a court room...

Then, if you can, ask them if you can talk with them at the table or in the living room or wherever is comfortable for them and you. First, let them say whatever it is they're going to say. It might be hard, but try to listen for things that might have hurt them about the situation, because they are obviously upset. Don't interrupt, don't raise your voice, don't do anything that might evoke an angry response. LET THEM TALK.

After they are finished, acknowledge their feelings, and then tell them the whole story as best you can, again, as if you're in a court room. I don't know if this will work with your parents... but at the very least, learning exactly what it is that got them so upset can teach you something about how they feel, and you'll be able to respond.

If that doesn't work, contact a lawyer. When the time is right, if you want them to be a part of it, you can have the lawyer tell them what you told him. They might respond better to authority.

Again, im really sorry if i sound like i know everything ever about you, your life, your family... That's not what i intend... just trying to throw out something that might help you out with your parents to help get them on your side.

Remember, yelling doesn't solve anything. If they yell, just listen. A mild, calm answer can really cool down situations. Avoid interrupting. I'll say it again. LIKE A COURT ROOM.