From my experience. It is a fix it ticket. However it is a pain the ass. I had gotten pull over and cited for it. I just took some ticky tac (is that what you call it?) and had it on the car for less than 5 sec (when it was cool outside) took the picture and took it back down. Went out to court and presented the picture and it was dismissed.
A good excuss that I tell people is just say that the car is european and I had just gotten the car or I have the front plate bracket on order with the parts dept. (when getting your car service as for a quote on the front plate from parts and once you get the sheet just had write back order on there) so when you get pulled over you can say i have it order just that it is on back order.