Thanks for all the comments in this thread. I was going to mention to the dealer that the interval wipers were behaving funny in the rain at high speed, but it turn out to be a feature. Neat!
Noticed the auto-signal when the turn-signal stalk is tapped, and found that there is a grace period after the ignition is off when you can still use the power windows.
I just leave the lights on - low beams, of course, unless highs are called for - all the time, day or night. As I am exiting the car, I turn off the ignition and unbuckle my safety belt, and when I open the car door they go off automatically. When I enter the car and turn on the ignition they come on again.