Taking my dog to the vet this morning when a gravel truck passed me. Om his rear were two signs: "STAY BACK 300 FEET" and "NOT RESPONSIBLE FOR BROKEN WINDSHIELD". I've had numerous windshield chips and cracks over the years and I've often wondered but never asked: Is the truck driver really not responsible when a rock flies off his load and cracks some innocents windshield? Is there some LA statute that provides that exemption?