The usual snail’s pace of a visit to the Department of Motor Vehicles resembled something more like paint drying Tuesday when the agency’s computer network came to a crashing halt. The four-hour, systemwide shutdown forced field offices from Los Angeles to Yreka to turn away or reschedule appointments until around lunchtime, when the computers came back online. Eduardo Lopez, a security guard at the DMV office on Fell Street, said most people took the news well – but a few vented their frustrations at him. “I’ve heard a lot of bad words today,” Lopez said. “But this is the DMV. It’s normal. This time, I can’t blame them.” Read the full story at SF Gate.