It's not really a question that it might have happened. It did happen.
There were temples in ancient Greece (and I would assume elsewhere) that would use new technology to simulate miracles. The temples would compete to create the most impressive miracles and outdo each other, not unlike street magicians.
There are also situations where superstitions and religious laws would be taken advantage of. Take for example the famous battle of Thermopylae (basis for the comic book & movie called "300"), where the Persians attacked Greece during the Olympics, when it was forbidden to go to war, even to defend your home. That is why king Leonidas brought with him only his 300 bodyguards to defend against the Persians, rather than the entire Spartan army.