The reality star was arrested in Seaside Heights, NJ in June for allegedly "dancing wasted in the middle of the street", according to an eye witness.
Cortese was admonished by a New Jersey judge during a court appearance on Tuesday (July 3) when pleading guilty to a pedestrian violation of not walking on the sidewalk.
Her agreement to a lesser plea allowed her to avoid prosecution for the original charge of disturbing the peace, reports The Asbury Park Press.
Cortese agreed to pay $106 as well as $33 in court costs.
The Jersey Shore star expressed regret for her actions and apologised if she "caused any trouble".
Cortese was filming the sixth season of Jersey Shore at the time of her arrest.