Change the locks/install an alarm that triggers a call to the police.
State "treating this house like a hotel and waking me up is disrespectful, you can either be a respectful person or leave"
"I told you there were boundaries and this is one of them. I enjoy my sleep and won't allow you to take that away from me"
Oh and how about some LOUD music at 3:30 to start your day? Singing in the shower with Pandora blasting (get a few portable speakers if you don't have any)..... this will do two things 1. Drive home your point about being considerate of others 2. Start your day with AMAZING PMA. It's awesome what a good upbeat song or two will do for you.
