Nah, if they were running a fake space program they wouldn't create a Saturn V with the official specs, with the ability to reach escape velocity at 4 miles a second, with a mass of over 6.5 million pounds, filled to the brim with dangerous rocket fuel. They would have created an inferior version that only needed to fly out of sight.
It was a rocket masquerading as it's bigger brother in a show: A firework.