Hi, have been wondering myself. Two ways forward in my mind - prevention and retrieval.
Nothing like an installed steel bollard to stop someone getting it out of your garage. I don’t think anyone notices house alarms any more and car alarms aren’t far behind.
My thought would be some sort of GPS trackers that are geo-fenced and are 4G as the 3G networks aren’t far from turning off and 5G is unlikely to have the coverage in the short-term.