I don't think so, you fully disclose the incident.
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you have disclosed the arrest at the interview and provided the disposition, but you are working with an attorney and if you have concerns, you should talk to your attorney about your concerns
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Since you fully disclosed the incident during the interview, you have not made a misrepresentation. I would discuss your questions further with your attorney, since your attorney was present at the interview and knows exactly what happened.
I think you answered the question timely and should not have any problems. If you already used a lawyer, make sure you hire him again when it's time to apply for citizenship, just in case...