Neil served 10 days of a 15-day jail sentence in February, another 15 days of house arrest, paid a fine and completed drunk driving and victim impact counseling.
Court spokeswoman Mary Ann Price says Neil also made a $500 donation to Mothers Against Drunk Driving.
Neil pleaded guilty in January to driving drunk in his Lamborghini last summer near the Las Vegas Strip.
He faces arraignment Monday on separate misdemeanor battery and disorderly conduct charges after a casino showroom confrontation with an ex-girlfriend on March 24.