Very true! I'm glad they didn't try the other way of getting in! I've seen one fiesta where they forced a screwdriver down the side of the drivers door to get to the little screw that holds the lock cylinder in to open the central locking that way... Very Messy!!
You can put switches/cut the wires to the OBD port but these people know what they're doing and they'll just follow the wires back to the looms in the car/ find the switch. The beauty of the OBD Protector is that its always there and only needs to be touched if you breakdown/car goes in for a service. Just google 'ProtectAVan' or 'OBD Protection' and they'll probably come up