Have you found anyone to help yet? Is he hanging in there? I can't believe how difficult it is to find help for wild animals, it's disgraceful.
When you said your husband tried to help him was he trying to catch him? I was just curious because I thought if he is not protected or trapped in his state he might wander off. A sheet or light blanket thrown over his head to catch him is probably the best way. Of course you need to be able to bring him somewhere for treatment.