Once charges are filed (ticket) the statute of limitations has been satisfied. You may have other defenses but that's not one of them. Hire a CO attorney.
You will most definitely want to consult with a Colorado DUI attorney, and the sooner the better. Based on what you've described, the statute of limitations does not appear to be at issue. However, you may have other defenses. Good luck.
Attorney Harvatin is correct. This will not go away or be dismissed with the passage of time.
Consult with and retain an experienced DWI attorney and address this issue immediately.
Sign up to receive a 3-part series of useful information and legal advice about DUIs.