I have an autistic son also, when he was younger we always got one. It was a life saver at times when we would go to ride something and he would have a issue. You don't get to skip waiting in line but you are taken to a different entrance to enter. We always try to go in Oct. when the crowds are low and the lines are not as long. If I was you I would get one just to have in case. Some kids have more sensory issues than others, especially with the noise and lots of people. That way if you need it you would have it in hand.