You cannot plead guilty with an explanation any plea must be voluntary. If you start providing an explanation or disagreeing with facts stated in the complaint, then the judge may refuse to take your plea. OWI cases are complicated and difficult for attorneys so you should not try to resolve this case yourself. If you cannot afford an attorney you should ask for a public defender. But a public defender will not represent you on a first offense because it is a civil regulatory offense not a criminal one.
This is not intended as legal advice. It is only provided for educational purposes and cannot be relied upon as legal advice. Further no attorney client relationship is or has been formed by answering this question.
Taking to the Internet to ask how you should plead in a criminal court is not a good plan.
Hire a criminal defense attorney IMMEDIATELY.
NOT LEGAL ADVICE. FOR EDUCATION AND INFORMATION ONLY. Mr. Rafter is licensed to practice in the Commonwealth of Virginia and the US Federal Courts in Virginia. There is no implied or actual attorney-client relationship arising from this education exchange. You should speak with an attorney licensed in your state, to whom you have provided all the facts before you take steps that may impact your legal rights. Mr. Rafter is under no obligation to answer subsequent emails or phone calls related to this matter.
Any time you are charged with OWI you should hire counsel if you can afford it. There are significant consequences that flow even from a first offense. Additionally, the defense of OWI cases has, in some respects, become more complicated than defendant a homicide case.
This answer is for informational purposes only. By answering this question, no attorney/client relationship is created. Although the legal information is accurate, it may not be appropriate for your situation. The best way to handle any legal problem is to seek the advice of an attorney.