I imagine the criteria for getting a DAS card will be a lot more stringent than simply saying "I get tired out quickly". For instance, a guest with cancer who undergoes chemotherapy has significantly less stamina than a normal person. 2-3 hours outside may be enough to reach their maximum and risk passing out or collapsing in public.
I seriously doubt the GAC abusers used "I get tired out quickly" because that would have warranted the "get a wheelchair" response from the CM. I imagine the low-life scum would have used one of the invisible disabilities like:
![](http://i272.photobucket.com/albums/jj174/lloyd_carver/invisibledisabilities_zps11d08429.jpg)