Is it possible for them to charge me later after I ran my car in to a light pole?

I was recently involved in a single car accident. I don't remember much. According to the sheriff that followed me to the ER, I was making a suicide attempt. I was under a mental hold until evaluation. I think I remember him saying not to worry about a DUI because I was a sweet girl with a clean record. Anyways, I wasn't given a ticket, just a card with a case number. The doctor said that I had a blood alcohol level of .125 but the police would only be able to access it with a warrant. Then I was released once my evaluation for mental illness was cleared.