A couple left their 6-year-old son at a gas station and failed to notice he wasn't in their car until they got home 150 miles away, authorities said.

Sean McCarty of Riverside was found by other holiday travelers who called authorities, police spokeswoman Sheryl Hone said Sunday. The boy's grandmother picked him up at a police station.The youngster knew enough of his address so that police could locate his home in Riverside, where county sheriff's deputies were waiting when the boy's parents got home late Saturday, she said.