If this has been posted before, then I apologize. I searched and couldn't find it.
Anyhow, people have asked me what would happen if I locked the keys in the car, and I just assumed that it would be easy enough to simply unlock the car, and since the keys are within the parameter of the car, I posited, it would unlock.
Well, I was a dummy and locked them in the car this morning and was pleasantly surprised. The Z emits an audible beepy alarm. I don't know what the duration of the alarm is, but I figured I'd better unlock the car while it was still beeping. I pushed the button on the door to unlock it, recovered my keys, and thought about how it's nice to not (go into work without my room key and spending the next hour looking for someone to help me either break into my car or drive me my spare).
Thank you, Nissan, for making the Z shado-proof.
I figured I'd post this in case some of you had wondered, as I had, what would happen in this situation.