spressomon - towing a trailer, just like the trucks, you're allowed to be in the right most TWO lanes. Now if he was being an A** and got you for being in that 2nd lane instead of the rightmost because you weren't passing someone, then that is technically the law, but ignored here in the PRK with the large freeways we've got.
I was pulled over in Utah for being in what we call the #1 lane (left most) on a freeway (two lanes each direction). I wasn't towing, but was driving in that left most lane and there was NOBODY around. It was that 110 mile section in Utah on I-70 w/o any services, nothing. I was riding the #1 lane because the right most lane was really torn up at the time from big rig trucks. Local sherrif pulled me over. I wasn't speeding. Asked him why and he told me it was the law to stay in the right most lane unless passing only. He was nice about it when I explained the rough ride in that right most lane and just gave me a warning. Local LEO could have written me up for the $$, but didn't.