i am in a similar situation and would like to know what happens in ur case.

Mine is slightly different, it was supplying alcohol to minor, at a party. It was a gross misdeminor. My record was expunged years ago.
However they had taken my finger print, and that showed up during my H1b process at the embassy in nepal.
And now i am doing eb2, waiting on i485. Lawyer said, for immigration purposes, these cases never go away, even if its sealed or expunged.
disclosed everything during my application.

fingers crossed.