They can turn the servers off at night too. Some places still choose to do that. But that is unrelated to the point, if you are told that you are no longer we

They can turn the servers off at night too. Some places still choose to do that. But that is unrelated to the point, if you are told that you are no longer welcome at a business, you can’t come in without it being considered trespassing. The doors automatically opening for you (200 Ok) doesn’t matter. If you wear a disguise (change ip) doesn’t matter. You can’t go in. Also I would agree that absent a specific order to stop accessing publiclly available server resources, there is an explicit permission to do so. So I’m the case of Weev I think he did nothing wrong, AT&T were the ones in the wrong.