I figured that it may infact be the MIB, it sounded like they were on a stakeout and were ready to take someone down. The signal was full bar's down in the Morrison area, so I suspect that it was off of Mt Morrison as it was a close-call hit that brought it to my attention.
The 996 was decoding P25, I suspect that it was conventional in operation. I didn't have the time to get out the laptop and do any further decoding.
Thanks,
-Mike