I worked with a guy one time who told me at one point in his life he had driven his car for over a year without insurance and with a dead sticker and plates. I was surprised that he got away with it for so long. I would have had a stroke the first time a cop drove up behind me. His reply is that he just went out and drove. No speeding, no lane hopping, no rolling through stop signs, or rushing to catch the yellow light. In other words, I highly doubt cops are going to be out in the cold or the rain stopping people to write them tickets (only warnings for now)for license plate frames. If you get caught in a checkpoint, they might write a ticket but other than that, if you drive like you have some sense, cops usually do not give you a second glance.