Cortese was picked up by police in Seaside Heights, NJ at the weekend amid claims from one source that she was "dancing wasted in the middle of the street".
A police spokesperson has now confirmed those details to The AP and revealed that she looked to be intoxicated at the time of her arrest.
Cortese reportedly began dancing in the middle of the street just after dining with Jersey Shore co-stars in a local restaurant.
The reality star was then taken to a local jail to be booked on a disorderly conduct charge before she was released.
If Cortese is convicted, she could face up to 30 days behind bars and a $500 (£321) fine.
MTV declined to comment on Cortese's arrest.
Nicole 'Snooki' Polizzi discussed her own drinking habits on Good Morning America on Monday, revealing that she is avoiding any alcohol while pregnant.