Can a person that passes the horizontal vertical gaze nastagmus tests and blows 000 on the breathalyzer be convicted of DWI for taking hydrocodone the night before if a blood test was administered?

If your driving created reasonable suspicion in the officer's mind of your ability to safely handle the task - and it was further reinforced during a face-to-face interrogation then - you were administered a test. Despite the lack of evidence of alcohol intoxication the probable cause that your abilities were IMPAIRED by SOMETHING was sufficient for a blood draw which disclosed that you had a sufficient quantity of Hydrocodone in your system to impair you. You CAN be charged with, and convicted of, Driving While Impaired.