Paul Pelosi was driving his convertible on Friday in Yountville, a town in the heart of wine country, when he struck a parked car on the side of the road, briefly stopped and then drove away, the Napa County Sheriff's Office said in a statement. No injuries were reported.
A witness saw the collision and called 911. Shortly afterward sheriff's deputies found Pelosi with damage to the front of his car on a road roughly a couple of kilometres away. He reportedly told officers he knew he hit something but was not sure when or what caused the damage.
Pelosi, 86, did not have any alcohol in his system, according to the statement.
The sheriff's office referred him to the Department of Motor Vehicles for a process to determine whether he may continue to drive - something that officials say is common for older drivers.
Pelosi was not arrested, and because no one was injured, the sheriff's office recommended a misdemeanour charge for fleeing the scene of an accident.
A staffer for Nancy Pelosi did not immediately respond to an email seeking comment.
Paul Pelosi pleaded guilty in 2022 to misdemeanour charges of driving under the influence in Napa County and was sentenced to five days in jail and three years of probation. However, he served only two days in jail and received good conduct credit for two other days, leaving just one day to serve in a work program at the courthouse.
As part of his probation, Pelosi was required to attend a three-month drinking driver class and install an ignition interlock device, which forces drivers to provide a breath sample to prove sobriety before the engine will start.
He also was ordered to pay about $US5000 ($A7,215) in victim restitution for medical bills and lost wages, along with nearly $US2000 ($A2,886) in fines.
That same year he was attacked and severely beaten with a hammer at the couple's San Francisco home.
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