While Saturday’s projected snow isn’t expected to be as hazardous as what blew through Grass Valley midday Tuesday dropping 4 inches of snow and stranding scores of drivers, responders said there are lessons that should be heeded. “The first thing people need to do is not abandon their car,” said Doug Bigley, owner of Celestial Valley Towing, which had more than 100 calls for service during the storm. “But the first thing people do is abandon their car,” Bigley said. “If you do, be prepared for it to not be there when you get back.” Tuesday’s storm only lasted a …