There are situations where it’s legal and necessary to drive drunk (e.g. backwoods camping accident requiring hospitalization, escaping a violent situation, etc

There are situations where it’s legal and necessary to drive drunk (e.g. backwoods camping accident requiring hospitalization, escaping a violent situation, etc) The innovation is more overcoming the societal hurdle of deciding that driving away from these emergencies should no longer be technically possible. Interlocks merely follow from that.