Britt entered the plea in Hoboken Municipal Court to a charge of disturbing the peace and paid a $1,500 fine.
Britt faced several charges in the June arrest at a car wash, where police said they suspected him of carrying a marijuana cigar. Police claimed Britt crushed the cigar and disposed of it. It was not found.
The remaining charges were dismissed Tuesday.
Britt was the first player from Rutgers ever taken in the first round of the NFL draft. He's had seven incidents involving police since 2009.
He previously pleaded guilty to a speeding arrest in his hometown of Bayonne and faces legal troubles in Tennessee.