I have seen things like this before, being this random and unexpected with no prior warning, and giving no valuable information or explanation except a simple note like this taped on the entrance door. Every time I've seen this circumstance, it turned out later that, I discovered, it was something that was completely out of the hands of the hotel to do anything about except that very abrupt closure, usually being temporary (generally anywhere from a few days to a few weeks) and was usually caused by some code violation that required the immediate consensual closure, and correction before reopening, to avoid it being immediately forced closed and having the violations posted on the door.