Contra Costa County Fire Captain Chris DeMeo says his crew about to clear the scene of a non-injury accident on I-680 North in Walnut Creek early Saturday morning, when their fire engine was suddenly rocked. The accident happened along I-680 at Treat Boulevard near Walnut Creek just before 4 a.m. https://abc7ne.ws/3k9zWpi #tesla #collision #carcrash #firetruck #accident #walnutcreek #abc #abc7news