J.S.
The camp director very likely won't be allowed to speak about any other child's condition with you as it would violate privacy laws, and technically Autism is a disability and a medical "condition" so she really shouldn't talk to you about him specifically. She shouldn't even really confirm to you that he has Autism without the parents' consent.
Since you're not certain that he has Autism, but it seems clear that he's special needs, you can talk to her about special needs in general and how sometimes some behaviors aren't a sign of someone being naughty but that they're having trouble figuring out when it's appropriate to say and do certain things. Or, as is a common ASD catch phrase: Autism isn't the way you think.
You can perhaps encourage your daughter to be a good example for this boy. If he is indeed on the Autism Spectrum then he needs good models for behavior. This will also be a good time for your daughter to learn that not everyone follows social rules all the time, and that it doesn't always mean that they're bad for not following the rules... that sometimes they just can't help it. But that he's practicing and learning all the time, the same way she is. She's just learned sooner and more quickly than he has.
And perhaps that's where you can use it as a teaching moment. She had to learn to follow rules and obey adults in charge and do certain things because she didn't automatically grow up knowing these things... and in fact she's still learning these things. But some people take longer to learn these things and it's harder for them to learn.