Skagway, Alaska in 09/2001.
We got picked up at the Whitehorse (Yukon) airport & got to the Skagway CBP station very late (maybe around midnight). They were closed at that time of day, so you had to get out of your car, push a button & look up at the camera & say your name & why you were there !! :-) We may have had to hold up our passports, but I can't remember anymore.
I would imagine that they don't do it like that there anymore (this was a week or so before Sept 11th occurred).