Been pulled over for a no front plate once in the last 10 yrs, got a ticket.
A buddy of mine had a couple of beers and got pulled over by Seattle PD for no front plate, and got himself a DUI. And no he was not wasted, blew a .081 but had he had his front plate on he would not have gotten pulled over.
Also, in Seattle of you ever get ticketed for parking and you don't have a front plate, automatically you will get a no front plate ticket too.
I have front plates, custom mounted, on all my vehicles.