Aside from pervasive intrusive surveillance questions and the reams of false positives that are going to emerge from this hideous nannying garbage, I can think

Aside from pervasive intrusive surveillance questions and the reams of false positives that are going to emerge from this hideous nannying garbage, I can think of several scenarios in which the practical need to drive in an emergency might outweigh the stipulations of some absolutely defined machine's interpretation of "too much to drink so I won't let you."