2006 Ford Police Interceptor Run Lock?

I'm assuming it's called run lock: feature where you can run the car without the key in the ignition. I heard somewhere (like 2 years ago before I bought mine) that the 2006 ford police interceptor has thAt feature. And that there's a button somewhere near the steering wheel that allows you to take the key out and run the car still. Anyone know anything about this?

I've never heard anything about it, and I used to sell them. I'm looking the P71 supplement now, and there's no mention of such a feature.