Troop L makes sense. No 800 MHz until 1998.
FHP Troopers were allowed to add CBs, but weren't supposed to make any permanent changes to the cars without prior approval (despite the misinformation out there). Their policy manual, which is posted online, further explains this. This policy was written in 1996, but the one before it was similiar.
http://www.flhsmv.gov/fhp/Manuals/0603.pdf