Police say Sergeant Wanda Anthony fired her weapon at another woman's car during a domestic dispute outside a Watchung strip club around 3:30 a.m. Wednesday.
No one was struck.
The case was referred to the Somerset County Prosecutor, and charges have not yet been filed.
However, NYPD officials expect Anthony to be charged with driving while intoxicated.
The sergeant, who is assigned to the 122nd Precinct in Staten Island, received the standard 30-day suspension without pay.