Food-truck fans make a case for mobile dining

When Sarah Sutton and her husband, Karl, decided they wanted to break into the food-truck business, they packed their bibs and headed for the Mecca of mobile cuisine that is Austin, Texas. "We spent a week there and we must have eaten at every food truck," recalls Sutton. "We thought, 'Why doesn't Portland have this?' It's such a foodie town."
Upon returning to Portland, the Suttons discovered that while there were city ordinances regulating food ...