Never heard of that feature. It does not lock the car upon driving, but I am thinking by mod or software pick you can do that.
if i unlock my car with the fob, and don't open the door, it automatically locks again after 30-60 seconds or so.
Yes and if you lock the doors and then get out of the car it will re-lock the driver door after a while. If you unlock all the doors using the lock/unlock electrical switch on the arm rest, They will remain unlocked (at least in my 2004 Prius) JeffD