Yep, that’s a fire truck. Bunch of co-workers standing to the left milling around aimlessly due to a (false) fire alarm that meant for evacuations.
Pretty impressive response: City of Redmond rolled what I counted as 4 units, and the City of Kirkland rolled 1 as well.
This isn’t normally what people mean when they say they’re dealing with fire drills at the office, though. 🙂