Alleghany and Covington did it a few years back but its such a crappy thing they completely abandoned it. Never worked right and when it did sorta work everyone hated it. Bath still uses it occasionally when sensitive stuff crops up but they basically dropped it too otherwise. About the only time it gets used anymore is if they switch to the wrong channel and key up since its still in their radios.
They get promptly told to get off digital though. LOL
Then again its Kenwood which explains it. Now they're talking about going P25 but not wanting to spend the money to do it right. Figures.....
There's some out around Bluefield, but I think most of it's encrypted. In fact, I think a local fire or rescue member was prosecuted several years ago for having the sheriff's encryption key installed in an ambulance radio.