Then IMO it doesn't seem too invasive to have a breathalyzer test attached to all vehicles, which will certainly save a lot of lives. The data can be all local

Then IMO it doesn't seem too invasive to have a breathalyzer test attached to all vehicles, which will certainly save a lot of lives. The data can be all local and regularly wiped to mitigate the privacy concern. Are the numbers behind alcohol-related vehicular injuries and deaths not high enough to be a political or public priority?