Near as I can tell, the only disadvantage to the way this was handled is that people had to move to the side and saw fire trucks driving down Main Street. Uh... so what? I mean, literally, who cares? No matter how much you like the Disney bubble, no one actually believes they are stepping into some other world or leaving the world behind when they enter Magic Kingdom. Stuff happens. When there is a safety issue, "show" is completely irrelevant and unimportant. I guarantee you not one single guest's vacation was negatively impacted by the fact that some fire trucks rolled down Main Street one afternoon.