Car "accident" with insurance?

Yesterday I backed up into an incorrectly parked car - my fault. I met up with the owner and told her what happened, we exchanged info, the police officer came, etc. I am handling this through my insurance. Her insurance called last night asking for info and I gave it to them. Called my insurance this morning - they faxed a Star70 form up to Indy...what else is going to go down now? She has been leaving me voicemails saying she is going to have her lawyer call me and that i'm going to be put in jail. I'm like...wtf? Then she sends me a message on Facebook saying the same thing. I am personally amazed that she actually took the time to look my name up on Facebook. I did not even know her name until she sent me a Facebook message. I have never had any sort of car accident before so I am very confused. I dented her car by the front tire by backing into it. I am just confused...why would she be threatening legal action when the insurance can cover it? I am thinking she has some issues...is it worth losing sleep over?