The worried driver called deputies after she found the young seal roaming along Avalon Boulevard and Dominguez Street on Feb. 9 around 11 :40 p.m.
After cornering the seal in front of a business, deputies called a rescue center to pick up the seal for evaluation.
Marine animal experts said the seal was less than one year old and most likely ventured into the city through the Dominguez Channel.
According to a representative from the El Segundo-based Marine Animal Rescue, the seal is the eighth rescued near the Dominguez Channel in 2013.
There is no word on whether the seal has been released from the rescue center.