PHOENIX -- A truck driver said he was stung at least 20 times when thousands of bees swarmed a Phoenix truck stop Sunday.Phoenix Fire Capt. Tony Mure said a trailer truck was hauling bees and they somehow got out in the area of Interstate 10 and 59th Avenue.Josh Call said he was walking to his truck, coffee in hand, when the bees attacked him. He was stung on his face, neck, upper torso and arms."I got swarmed, I mean covered in bees," he said. "I went across the street and I thought I'd be OK ... and they followed me all the way around the parking lot and they just kept stinging me."Phoenix firefighters checked Call's vital signs and said he would be OK. Call said he is glad he's not allergic to bee stings.Several other people were stung but no serious injuries were reported.People in the area were told to seek shelter until a bee exterminator responded and controlled the swarm."I don't know if I'm allergic but ... if they tell me to get inside a car, I will get inside a car. I don't want to risk it," said Bianca Valdrez, who was also at the truck stop.