Most students are able to avoid any direct altercations with the police and other authority figures, and those who do have run-ins know they probably deserve whatever they get. Be careful in the dorms: Your neighbors are often the ones to rat you out when it comes to loud noises and parties. Just keep the music low and the invitation list small.
CSUN is usually quick to act during emergency situations, though these are few and far between. They also act fast when it comes to parking. There is a very strong police presence in this realm, as you will see campus safety officers constantly patrolling campus. Drugs and alcohol are other offenses that campus police are strict with, so if you're going to drink and smoke, try to be discreet.