Ignition off, WiFi on. (Dash/Device)
Dash is a driving analysis application you can get at http://dash.by. You will need a OBDII (OBD2) reader for your vehicle that you can get from their website, Amazon, eBay or elsewhere. These devices read data from your vehicles computer and send it to any connected device. This Applet will turn on your device's WiFi, after you've turned off your connected vehicles engine. Everywhere I go or spent the most time has available WiFi, so no reason to use up cell data.