Oh man....ivbinconned....highway 16 and cold weather says to me that you live in BC somewhere between Prince George and Smithers....if so, then yeah, you have really been conned!!....put LT tires all round on your trailer and have a nice trip!....I live iin BC and never ever heard " illegal to run LT tires on a trailer"....only problem I ran into was that I could not get LT tires in 15"....if you have 16" or larger then go for it. TPMS and LT tires makes your trailer same as most tow vehicle trucks on the road...how many of them have tires blow out??