Hi Chris
Never have ever had any problem with registering the CMPs here in the states. But then again the people at the registry have never asked is it RHD or LHD.
I have had some funny police stops as a result of the RHD here is couple of those stories from my website which also has a picture of the bear.
http://www.canadianmilitarypattern.c...the%20Road.htm
"This is my co-driver for Parades a bear in uniform it takes people a while to realize that the truck is right hand drive and that it is not a person in a bear suite driving. The bear is animated so that he waves, peoples reaction that they have been waving to a stuffed animal is interesting most laugh and continue to wave other look somewhere else and try to pretend that they weren't really waving to the bear. Children universally seem to be like him.
The Bear has been stopped by the police twice. Driving a strange (and to be charitable CMPs are strange) looking vehicle on the roads here in the states does result in some funny things happening. When I first got my HUP on the road some 20 years ago a number of times found myself being followed by a police cruiser. Generally after they had followed me for a mile or two I would pull over and stop, never got a ticket, but often did have a pleasant time telling them what a CMP was. In the last few years the reasons for being stopped or followed by police have been pretty funny. The last two stops have both related to the right hand drive and the fact that I have a parade bear that rides in the left hand front seat for parades. The bear is human sized dressed in a Canadian Army uniform the bear is animated to wave in parades.
Riding in the left seat the bear has caught the eye of a trooper and local police officers. The trooper was passing in the opposite direction and pulled a "U"y to come up behind me with his lights on. Then he came up to the left side of the truck to ask the bear for his license and registration. When I said from the other side of the truck "yes officer can I help you" he just sort of waved at me and said get out of here as he walked back to his cruiser. The only thing I could figure was that he was stopping me for driving in a bear suit figuring that it had to obstruct my vision. I always wondered if he ever told anybody he had stopped a stuffed bear.
The next time I was stopped again on the way to a parade I had pulled up to an intersection squared the corner so that I could see both directions from the right hand side. I could see a cruiser parked on the edge of the road up a ways. After waiting for traffic I pulled out made and made my turn. A little way down the road there were the blue lights so I pulled over. Again the officer walked up to the left side of the truck but this one realized that it was a stuffed bear and laughed. When I asked him why he stopped me he explained that he had been parked down road and that the driver, the bear, had not looked either way. So he was going to warn the BEAR to look both ways."
Cheers Phil