Years ago I got a ticket while driving in Ohio (and I was an Ohio resident) for tint too dark and no front plate. Had to go to court and pay for an attorney, but got both thrown out. Something about if there isn't a front bracket, it isn't (wasn't) required. I have no idea if that's still the case. After that incident, I kept the plate on the dash just in case. I'll be looking into this, but wondered if someone already has.
If one is required, maybe I can incorporate into a canard or some aerodynamic device ;-)