I too think adding the gac to the family's rfid bracelet would work best-as it is I haul the sticker laminating sheets & a hole punch with us to the park guest relations first thing to get our gac...yes we have our medical dx in hand though we dont have to...why? because you never know who you will get to talk to-first time I had to do this I was intimidated (we were newly dx'ed)2nd time I was comfortable after a decent experience the previous year only to be met with a gatekeeper type who wanted to look us up & down (with an asd child who has a trigger of being stared at that is NOT what needed to happen at the time) I even had the previous gac in hand to try & cut down on problems...we did get ours but not without having to play 20questions & a weird way of numbering the family members-but for the people who dont understand what constitutes not being able to wait in lines & the idea that its bogus or fake claims...you are the people who usually stare at us & dare say that our kids should be left at home & never leave the house period because their meltdowns interfere with your "experience" in a restaurant or shopping trip etc- the people who dare say we need to spank our children for behaviors you dont understand...are you truly wanting us to haul our children with hidden disabilities into that wall to wall people queue line & wait next to you & yours while you stare at our kids for flapping or singing or humming or god forbid they get anxious over the staring or unexpected touch sends them into a panic attack...everyone handles anxiety/overwhelmed/meltdowns differently-some may just cope by flapping their fingers or arms, some spin (mine does big circles to make him more personal space and feel better) some throw things or lash out as a reflex, mine has this biting movement (he doesnt actually bite but thats the only way I can really describe it) he will throw his shoes if he gets too overwhelmed, some scream, some just yell for the vibrations or make other noises that vary in pitch & noise level...& yes many autistic people are by far more comfortable together than in a mix of people & can tolerate a group of asd people easier than being tossed in a mix because they KNOW how each other thinks/reacts & understand each other though they have different means of coping mechanisms...but I guarantee if made to join those huge wall to wall lines the fussy antigac people will be the FIRST to cry foul & demand removal of the "problem people" & their families will go with them & how is that fair & accessible to all? I dont mind a wait as long as you wont mind the potential fallout/coping mechanisms my children will use to tolerate being that close to you & yours! but dont expect me to happily keep my asd child in the hotel room because others may be bothered by their presence or use of their gac! those little cards are the ONLY way my son can actually babystep thru his vacation that makes him happy in spite of what others may think-he has trouble tolerating even being part of his own family at home & fitting in there (his viewpoint) even among his triplet siblings which is heartbreaking, why oh why would you deny him the ability to enjoy a family trip if it makes such a thing possible for him & others like him?