Our daughter-in-law's Audi was entered (it wasn't locked) while parked in their driveway. Fortunately, a neighbor saw it happen and called the police. In talking to her, I mentioned that with the car unlocked, someone could get in the garage and possibly the house. She said that Audi had Homelink set up so that unless the ignition is on, Homelink doesn't work. I admit that I'm not always good about locking my car so I tested whether or not Homelink would work with the ignition off and it does.
She said it is a pain once in a while but overall, she likes the feature. Maybe Volvo could include it in a menu item to choose how it works.