I had a speeding ticket in CA, took the Driver Ed class to waive the ticket, but I still had to pay the ticket. When I filed my n400, I did not report it, I just let the IO know at the time of the interview that I had the speeding ticket and gave her my driving record from the DMV and copy of the ticket to her, she just made a note of it on the application. As long as the citation is less than $500 its ok. But I have seen other people in the forum specifically state that you need to state every citation in your application.
Please note that this is my experience, I am sure other people have experienced it differently. So it will all come down to what you think.