I'm sure you'll be able to turn it off in the computer. The title of the article made me think it was some sort of remote shut-off, but it's just talking about having the computer shut the engine off when you're stopped at a light. I don't think it will work well with gasoline-only cars, because when the engine was off there would be a short delay after hitting the gas pedal - takes a second to restart the engine. It's a good idea with hybrids, you can run on battery power while the engine restarts.
The tech is all talk right now, it's not necessarily something that will be implemented.