Office Building, Other Business Pinellas Park, FL – Office fire at flea market put out with help from sprinkler system January 11, 2019 viking210 A fire broke out at a Pinellas Park market early Tuesday morning. Firefighters arrived at the Wagon Wheel Flea Market at 7801 Park Boulevard North. They said there was heavy smoke pouring out of the main building. Officials said the sprinkler system kicked in and helped put out the flames. Firefighters said they believe the fire started in the main office but the cause remains under investigation.