The LEO wasn't quite correct...I get waved in all the time to the scales because I set off the lights..I wave at them and keep going..I run a Freightliner FL60 SC that weighs in at 14K.
My trailer is under 4500K KGs so I don't need they extra cert for that.
I live in NS but run into Ontario (the DW is from there :>)..thank goodness for hwy 30 in Que
I think your problem is that you have your rig "incensed within a commercial company of my own". Hence, regardless of how you use it, it is a "commercial" vehicle...and you have to abide by the laws of commercial trucks.
Mine is registered as a camper. I have air brakes so I had to get that cert. ZERO commercial regulations apply to my rig. I insure it via my house insurance.
PM me and we can continue this conversation if you would like. Pics of your truck are always appreciated.