detained and given an acd 170.56

[goobz]

I am filing out an N-400 form and will submit my court ticket and info for being detained way back in 1999 for smoking pot in public. I wasn't actually smoking but I was with a group of friends who were smoking pot at a concert in Central park when it happened.
I was a tourist at the time and was given an Adjournment in contemplation of dismissal which lasted 1 year for which I was told the record would be expunged. So I was never charged and have been trouble free since.
I submitted all this information for my permanent residence application and it wasn't a problem.
Will the USCIS deny me Citizenship for this?

Thanks in advance