Seems.. the car accident.. finally broke through her alcoholism denials. I understand that its not my problem anymore. My concern in all this is obviously the kids.
If you're a parent, then a DWI is your concern. Was it a DWI? Was there a child in the car? How long ago was this? These are typically public records and I know people who regularly scan for updates to their ex's criminal records. The courts weigh such factors. The court's goal would be to protect the kids by avoiding future incidents of drinking and driving. If it was a DWI, the court may give her options, e.g., recovery programs OR ignition devices that measure alcohol levels. You say she plans to seek treatment, so this may be a non-issue, just a reminder that the way she parents is a concern if it rises to the level of criminal abuse or negligence.
Beyond that, YES, let go and stop trying to control what she does. That sounds like it would be a big 180 in your situation.
