At the end of the day, dummy got convicted and went to prison.
Let this serve as an example of what can happen when one thinks that accessing government radio systems without authorization is a consequence free act. Sure, this guy went to the extreme end of the spectrum making fake calls, being nefarious stunning TRBO consoles, et al, henceforth why he actually got time behind bars- but this stuff is taken seriously by those charged with protecting such systems.
It goes without saying that LMR security is becoming more in the light, and many are working to secure systems from unauthorized access in a myriad of ways. CISA just released a paper on LMR security for the first time.
Clowns like this are why many systems become locked down, whether it be LLA like authentication (P25), RAS (TRBO) or NXDN trunking (ESN validation) to encrypting all voice communication. If this trend persists, things like P25 control channel encryption could be implemented, which means GAME OVER.