A Wing drone carrying a Walmart package.WalmartA Florida man admitted to shooting a Walmart drone last week, law enforcement officials said.For the past decade, gun owners have been shooting at UAVs — in violation of Federal regulations.Now, as more retailers use drones, armed Americans may add further complication to delivery by air.Retailers have had to solve a long list of technological, regulatory, and commercial challenges in order to offer deliveries by drone.But one complication remains especially difficult to predict: US gun owners.In the latest episode, the Lake County Sheriff said last week that Dennis Winn admitted to shooting a Walmart drone with a 9mm pistol as it flew near his home in Florida.According to the arrest affidavit, Winn told officers he had prior experience with drones flying over his house and believed the aircraft to be surveilling him.He then went inside, got his gun from a safe, came out, and fired one shot at the drone, which was roughly 75 feet in the air, the affidavit said."I then told him that he had struck a Walmart drone," the Sheriff's deputy said in the affidavit.