Here in Colorado it's also the law. You've got to have front license plate on your car
I've been pulled over a few times both in my Z28 and in my Z06 and I've never gotten a ticket, just a warning every time
The local cops can care less about it, the state police are the ones enforcing it, and the only ones who have pulled me over for it
That said, you've gotta understand why they want you to have one
A couple of good reasons:
1- it'll help solve hit and run cases; most of the time in a hit and run accident, the front licent plate usually falls off at the scene
2-it'll help on redlight runner on intersections where a camera is in use
I still refuse to put one on my vette
