Well, as your transition pieces are as rich in detail and character as the rest of the story, Nan, I wasn't bored for a second.
I especially enjoy the way you use secondary characters - like Sam's introspection - who don't usually get as much exposure. That's always fresh and interesting and you do it exceptionally well.
I liked this a lot. More please!
Oh, one small thing that struck me:
Chances were extremely good, after all, that the keys were lying somewhere in the building, undiscovered, and, given time, would be found and quite possibly turned in
I was a little surprised here that he didn't think of scanning for them himself. With his augmented vision he has a better chance of finding them than any passer by. Although I got a little confused with the paragraphs following after this quote - I assumed you meant that he was going to 'hover and scan' looking for Ellen and not the keys, but you could have meant both and I wasn't picking up on that.
LabRat