Ii don't know of any reason why you can't carry in the BMV.
I just bought another car so I was in one of the local offices in my area, I didn't notice any sign regarding no carry. Further, being that the office is in a strip mall, privately owned, its not city or state property, but is leased by the state. I'm not aware of any state law that forbids carry into state offices other than courts, and some other specified buildings.
If you're unsure...cover it up and who's gonna know?
The most they can say is, "get out". Like I haven't heard that before... I've been thrown out of better places than a license branch.
Hell...imagine MY surprise?? I'm the nicest SOB I know.Imagine my surprise at hearing YOU have been asked to leave someplace...