yeah the police ai systems need a revamp. first and foremost, i propose that instead of those ncpd hustles and side gigs being isolated incidents, that the player be allowed to head down to ncpd headquarters and apply for a constractor license, this will allow police scanners to recognize you as friendly and not engage you when you're fighting crime on their behalf.
This sounds like a valid way to add some depth to this. NCPD Dispatcher already refers to you as possible "subcon". Subcontractor, I guess?
I cannot imagine NCPD just broadcasting this to anyone who comes close. So this implies you must take some step to become one or be considered one. It sounds unlikely that even a Nomad (or street kid) would sign up for this in the 6 months montage or before, respectively (if NC resident by background). Also doubt the Corpo would've done it before and or then in the 6 months.
Model out the NCPD HQ at Glen (if not the case already) and make it so you can go there to sign up, while tweaking all these quests and how police approaches you. Let them become more friendly if you sign up, heck, if you become trusted, let them near-ignore you if you run around their "checkpoints" or crime scenes. If you become known, let them greet you or say something like "Ah, V, right? Another dead body here...".
(Hey, if you level street cred, you might as well get actual recognition)
In addition, Glen NCPD precinct could also be fleshed out and enterable any time or under more circumstances if they do truly expand on MAX-TAC or allow you to quasi join that particular unit for more side content and a small or moderate quest chain. And some perks. Like hunting and killing cyberpsychos or being able to 'arrest' any criminal gangoon you take down non-lethally for a small added monetary bonus or so.
There's many possibilities to add more depth to this area and part of the game, among other parts.
Simple:
DRIVE AWAY! THEY CAN'T OPERATE VEHICLES!
Who needs vehicles if you can TELEPORT!