It is probably an ethics violation. I am sure he probably covered himself in the fine print but as you can see the customers are confused so that means they didn't expect the full respiratory panel testing. Insurance companies may have rules on it too so he could be in violation of contracts. I would expect negative flu test, negative covid test, then that justifies the remaining panel if symptoms worsen or what not.

This is though the same thing car dealers do. They always want to up sell services.