Lao and Thai restaurant Padaek is finally open for business in the Arlington Ridge Shopping Center. The day after we last reported on the restaurant's progress in late August, Padaek started fulfilling to-go orders, according to a restaurant spokeswoman. The restaurant added its dine-in service on Sept. 12, she told ARLnow today. The restaurant, located Lao and Thai cuisine restaurant Padaek has officially opened a second location in Arlington.