Where else would the devices be stored in this case? I understand where you come from, but there is a problem on both sides of this situation. If the owner wanted, they could have refused to allow your own devices. So I can see why they want to keep them in the garage and keep them with the device when you leave. In this case, you need to meet her halfway. You have authorized your devices, you need to keep your own. It looks right to me. If you don`t have a device you don`t want to replace – for example. B a $75 oven from Craigslist – make sure all appliances are properly checked and maintained….