id call where you plan on crossing. If crossing into Canada call the Canada side of the crossing. We tried to cross into Canada with a enclosed trailer and 6 Hardleys and they hassled us for hours. Checked vins and wondered why some of the 40 year old shovelhead bikes didn't have matching numbers on the frame and motor. They basically turned us back because they thought we were running a chop shop! Nedless to say the next day we pulled the bikes out of the trailer and rode them through the crossing with not a single hold up.
For some strage reason there was a grateful dead concert that weekend in Canada and they were stopping and harassing every vehicle that had long hair people in it%) or that looked like pot smokers.
If your from Canada and crossing back into Canada they probably wont care much, but if your a US citizen crossing into Canada they will harass you im sure.