Turns out it's not going to be a big deal. I apparently had gotten rear-ended and the person who was behind me had tried to report it, so it was initially reported as a hit and run. When the cop told me that, I looked at my bumper again and there was a very minor scuff on the back. I told him that I was so focused on avoiding the potential accident that I didn't even feel the bump from behind. I knew I'd successfully avoided hitting the guy in front of me and so I thought everything was fine and kept going. The "damage" to my car isn't worth replacing a back bumper (no dents or cracks, just a scuff), so I won't be sticking it to her on that. Just going to exchange insurance info with her, since she did give hers to a beat cop in the report.
Crisis averted. I'm not going to prison. So you guys are just going to have to put up with me for awhile longer.
So you were honest with the police and the situation was resolved to everyone's satisfaction?
Unpossible! Cops are bad and only want to throw innocent people in jail!
(Or so I've heard...)
Glad my "bad" legal advice worked for you.