I finally found a maker. I was talking to my daughters latest beau and he has a Ram 2500 dually P/U and vroom it starts up! I says hey How'd ya do that? so he shows me his remote switch...after about 20 minutes of jawin the truck shuts off...apparently it can be also programmed for the amount of idle time. Cool!! It is also or can be a security system as well. Cost him about 300 Can. installed.
http://www.compustar.com/sponsvehpages/megsemi2.htm
http://www.compustar.com/sponsvehpages/megsemi2.htm