US citizenship application, don't know if I should mention about

Asked in Elmhurst, NY - about 1 year

an incident happened 5 years ago during which I was falsely accused of shoplifting and at the end I was told that they believed me but just in case they would keep my info and the paper I signed (which was explaining what had happened without accepting the accusation) in their records for a while. There was no police, no charges, I didn't get a civil demand either. Since there was no arrest, I assume my criminal and civil record is clean. Do you think I should mention about this in the application form or during citizenship interview?