I was involved in a small auto incedent yesterday afternoon. I was approaching a 4 way stop, when the person in front of me slammed on her breaks. I bearly tapped her car at no more than 2-3 mph. There was no damage to her car, other than an obvious old bumper scratch no bigger than 1/4 inch in diameter. She said everything was ok. I gave her my business card and DL number. She left me a message about 5 hours later and stated she got an estimate and I did $300 worth of damage, and asked me if I would like to give her cash or let insurance take care of it. I believe this is blantant insurance fraud/extortion. I'm sure I did no damage to her car. There was no police report filed, and no insurance info exchanged. How should I proceed? Thanks in advance for any advice!!!