Doublet,
We don't have too many active members from that area, so any information you gather, please keep us informed (it helps us help others like you, who are new to the area or hobby). That being said, I see from your avatar you have a Uniden scanner. You should be able to program the conventional output frequency in to your scanner. Let us know if you're hearing anything.
If anything has changed (I should take the time to look at their FCC license), I'd bet they converted to P25 digital (though whether or not they choose encryption is further speculation).
I just checked the Kerr County FCC licenses, and they were modified the same day as the City of Kerrville licenses for digitized voice emission designators. I'm not saying they're digital yet, but in the future they're planning on going that way, and I'd bet this year's lunch money it's P25 (and I still won't speculate on encryption).