Mo, did you happen to catch the Baltimore County Fire talkgroups or channel assignments associated with Harford County? Somewhere in BaltCo's band plan, there are probably a couple of spots for mutual aid to Harford. They are not currently in the database but show in the zone list as being in Zone L.
And there's Harford County calling for the Ladies Auxilliary again to deliver food and drinks. They can't seem to fight a fire without that happening. Actually, it's kind of a neat custom harking back to older, more simple times.