You shoud definitely consult with a DUI attorney as it sounds like you have some potential issues. The DMV will not be concerned about the Ambien, only the BAC, if above .08%. Did you get a report of the blood test result, and the Ambien was just not on it? Or did you not receive it at all? If you did not receive it at all yet, you should get a copy at your arraignment, which is the first court date. And, no, as for the Ambien. there is not a certain number you have to be below/above. Call an attorney to assist.
If you want your results you need to tequest a DMV hearing within 10 days of the arrest and I would consult with a criminal attorney in your area to represent you at the DMV and your case if it is filed. You have raised many issues and it is best to review with an attorney. Note that public defenders do not handle DMV hearings.
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