OK, here is a new one I was hoping someone had already tried. I have ordered a Wayne-Dalton WDHA-12 Zwave gateway. The theory is that if you have HomeLInk in your car ( fancy built in garagedoor opener remote) it will take that signal and then bridge it onto a Zwave network so that the button in your car can send a signal to a Zwave network like SmartThings. That would allow you to turn on lights from the car.
I know that they have gotten it to work with MCV already. Has anyone tried to use it with SmartThings yet? Any successes?