I play legal (SD) and crim (CSB) and this is my personal opinion:
Honestly, it's not about the AP, it's about you making this really bad decision and expecting an outcome.
The gun update really balanced things out for crims. Prices are much lower, heavies are everywhere. I personally destroyed @RedHot with an AK mk2 when he was wearing 200AP. Blud couldn't do nothing but lay on the ground, and roleplay his injuries.
What I'm trying to say is, use the right equipment for the right situation. If you really wanna fight a cop and expect that you'll win the fight, before doing so, make sure you're not outnumbered, have the right weapon and have a plan to dip after shooting them.