So if you inhale libations and then exhale in this specially designed bag of Tostitos it will tell you if you are okay to drive? Green wheel means you're good, red, don't drive. There aren't a lot of these high tech tortilla bags being distributed. Maybe Tostitos remembered to send some to Alaska? Not sure. Gimmicky, yes, impressed it works, and hopefully it'll remind people to park it if they are unfit to drive!