Said kitten is a tortoise-shell tabby and certainly isn't shy! She was meowing quite loudly while being transported in a spare paper box and, when let out, she was quite happy to be picked up and examined by all and sundry here on third shift.
I ended up agreeing to take her home with me. I'd hoped to be able to spend the rest of the night at home, as Brandy is having a bit of stomach upset that keeps her wanting to go out every couple of hours, but I'm apparently needed at work tonight. (Not that I'm doing anything, mind you.)
So the new kitten resides in my bedroom for the time being. She had food (ate all that was provided), has water and has a litter box. I'll be taking her to a vet in the morning to get her checked out and make sure she gets her shots and doesn't have feline leukemia or anything. The plan is to keep her segregated for a few days so the other animals can acclimate to her (and she to them).
She hasn't sprouted a name yet, though someone at work thought "Pearl" would be a good name as she has swirly coloring. Ericka thought "Jewel" when she first heard of her. We'll see what settles on her in the next few days.