I would agree with that last part, but the problem is joining the APD is Fucking. Impossible. (Totally haven't failed the interview twice now) I agree with everything else though, in fact it seems quite cool to be honest. It would make it more realistic, as in real life Vigilantes are considered criminals. Get your hands on an MX with some ammo, buy a rebel vest and fatigues before you buy the vigi license (GL Carrier and CSAT fatigues, helmet maybe) And buy the license and zip-ties. That'd be some fun shit, as you'd be jailing criminals and still on the run for having the illegal weapon.
One thing you'll need to know though, I know Kavela vigi shop is broken for a fact, but I'm not sure about any of the other towns. They say which ones in an announcement post somewhere.