Charged With A Hit And Run After The 911 Dispatcher Told Me To Leave The Scene. What Do I Do?

Location: California
In December 2025, while sitting at a red light, some crazy lady walked up to my truck and started kicking it, which scared me. I panicked and accidentally put my truck into reverse and hit a lady that had just pulled up behind me.
The lady started cussing, yelling, and screaming. I tried to calm her down and told her that everything will be ok and that’s what we have insurance for. I told her to take down my information, and I also asked for hers, which she refused to give me. She was making the whole situation even worse because she wouldn’t stop screaming, so I called 911.

I explained to the operator what was going on, and I told the dispatcher that the lady was refusing to give me any information. The dispatcher told me to take photos of her license plate, which I did, and I also told the lady to take photos of my license plate as well. Then the dispatcher told me to go home and a deputy would be out shortly to take my statement at my residence.

Instead of someone coming to my house, I received a phone call 5 hours later from an officer yelling at me, saying that the lady I hit was still at the scene and that I took off after hitting her. She went after my insurance and also sued for physical damages.
I thought this was already over with and settled, but on August 28th, 2026, I received a letter in the mail from a district attorney saying she’s going after me for more damages and a hit and run. My court date is next month.
How am I being charged with something I didn’t do? What do I do from here? I tried to retrieve the 911 call from that day which I paid for, but instead I got an email saying that they’re not going to release the call to me because I’m “tampering with evidence.”