Well, just this past Sunday I literally had a random drunk driver pull onto my private property and proceed to wreck their vehicle in my front yard. While the interlock would have kept them from starting the vehicle originally, the stupidity from drunkenness is still present regardless of location or speed. I strongly disagree with interlocks (someone could have just cleaned their hands with alcohol sanitizer, or someone spilled a beer on their hand or on the sensor itself), but I would be more amenable to something that could be overridden immediately but with some warning notification lights on the vehicle with laws stating you will be pulled over for inspection and you(not insurance) will be responsible for any damages or accidents you caused if proven drunk driving after disabling the lock.