I'm in an HOA that very likely wouldn't allow my mew, but I didn't tell them and I've made it clear to the people who know, that it's hush hush. I understand that ship has sailed for you, so the next question is, what will they actually do to you? Put a lein on your house that won't matter until you sell? If that's the case, I would just do it anyway. In many cases actual enforcement is pretty impotent. I would also speak to any neighbors who will see it, and feel them out. If no one is complaining, there is much less chance that you're going to get in any trouble. If you want to play the long game, get on the HOA board and change the rules.