A friend attended Daytona Bike week and came back with a huge ticket. He had a vertical plate tail light assembly, got pulled and was given a $1141.00 pay on the spot ticket.
NC just passed the same law but, only $100.00. That would suck big time. Time to check state laws before crossing the borders. Ride safe!
The very brief history on this ticket is the legislation was crafted to heavily fine the Rice Rockets that don't display any tag, display their tag under there rear fender, make sure it is illegible (dirt)---etc.
The law's concept was extended to include tags mounted sidways because they too were illegible.
When I brought this issue up as a cautionary warning prior to Biketoberfest, I was advised that the rotated tag was now excluded from the law criteria. I mention this because if I were your friend I would contest the ticket and get my money back since the fine is both incorrect and doesn't apply.
He may be able to hire a local attorney to do the job and not have to appear.
I hope he prevails.