Does holding both power window switches in the "up" position do anything to the power door locks? This is what I experienced the other day, but have not been able to replicate it...

- MY06 S2000
- Both doors locked.
- Car moving at ~5mph
- On driver's side, hold passenger window switch up and then hold driver's window switch up (both simultaneously).
At this point, I hear a noise that sounds like the power door locks are activating to lock the doors.

I tried this a few times with the same results. Then, I tried with the driver's window switch first without a similar result. To verify it was locking the doors, I unlocked the driver's door and then retried it. At this point, it stopped doing it. Now, I can't replicate this behavior.

Is this normal? Some feature I'm not aware of?

Thanks.