It’s horrible that people have lost their lives... but I don’t see this as an issue with the car. I actually think it calls for having more CO detectors in home

It’s horrible that people have lost their lives... but I don’t see this as an issue with the car. I actually think it calls for having more CO detectors in homes (along with fire alarms ). I have a key less ignition car, and if I leave it running... I want it to stay running. With or without the key. However, the audible alert seems like it would be valuable. What about having the Fob vibrate periodically when outside the car and the car is running ?