The driver of a green GMC Yukon going eastbound on state Route 78 pulled over to the right shoulder of the freeway in Vista, and a 10-year-old boy and 16-year-old girl went on foot into traffic, according to a press release from the California Highway Patrol. Vista fire officials told ABC station KABC that a mother was traveling with her children when a piece of luggage flew off their car and the two children ran into traffic to retrieve it.