If the dog is a true Service Dog, then I don't see how they can prevent releasing the dog to you.
I'd suggest to contact the ADA and gather your papers to certify the dog's Service Training.
I'd also suggest to maintain control of the dog to prevent it from getting out of the house.
If the dog is an ESA dog, then you probably have no recourse. To my knowledge, ESA dogs have do not legal protection.
I'd suggest to contact the ADA and gather your papers to certify the dog's Service Training.
I'd also suggest to maintain control of the dog to prevent it from getting out of the house.
If the dog is an ESA dog, then you probably have no recourse. To my knowledge, ESA dogs have do not legal protection.