I think that dish (cap) is half empty, when I came to him with the light to check - he hid.If he drink a lot and now is more active that means that he was dehydrated. Don't wait a day, place a water source who can reach easily near him. I wouldn't pour water in the wood, since it could be harmful if any chemical disolves on it.
I'll repeat in the morning! (he still has original dish + I put another one on top of the wood).
I'll replace the branch in a couple of days too.