Conventional P25 simulcast exists, look at Green and Clark counties which have also implemented LSM/CQPSK simulcast conventional P25 repeater networks.
I'm unsure which license is the correct license as 3 show for 155.955, two list the sheriff's dept as the holding entity and the other just lists the county, none of them have emissions designators for P25. Two of them do have multiple towers listed, however.