I've heard them VHF all this week as well. A guy I work with was speaking with Public Safety personnel and was told they were thinking about digital. Other than hearsay, I have no firm evidence. I just figured I would throw it out here to see if anyone else has heard anything.
With the recent successful acquisition of half-a-million dollars in grant money from their local US Congressman for communications "upgrades" I suppose everything is on the table for consideration.