We have never used it even though my older son is autistic as he has a mild form of Aspergers and did not need the service. My nephew with some moderate to severe anxiety issues has been recommended by his doctor to access this DAS card. I read about it and I guess my question is: Can my brother go with my nephew to any of the parks' guest services and get the card the day of arrival even though we are not going to a park until the next day? I don't know how long the process takes to get the card as there are questions involved as well as a picture. If anyone has experience with accessing this disability card, your insight would be much appreciated. Thanks.