On Monday evening, officials said Mascia had been suspended without pay as the investigation continues.
Investigators searched Mascia's West Hempstead home Sunday, two days after he was released from Nassau University Medical Center on Friday afternoon.
The search was to secure Mascia's weapons, as well as any other firearms.
Mascia called in that he was shot by an unknown motorist late Wednesday night, although state police said it was not captured on body camera.
The body camera is programmed to activate when the State Police cruiser's emergency lights are activated, but state police said only his rear emergency lights were activated during the incident.
Officials said they are no longer seeking a Dodge Charger with temporary New Jersey plates that was reported as being involved in the incident.
"State Police is conducting an investigation into the circumstances of the shooting involving Trooper Mascia that was reported on October 30," police said in a statement. "This remains an ongoing investigation and further specifics are not being released at this time."
The Nassau County District attorney also released a statement Monday that said they are investigating "certain inconsistencies" after the incident:
"My office, in partnership with the New York State Police, is actively investigating certain inconsistencies identified in the reporting of a shooting incident involving New York State Trooper Thomas Mascia last week on the Southern State Parkway. The investigation remains ongoing at this time, and we refrain from further comment until it is completed."
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