Welcome back to Canada.
I always interested to hear about border crossings. Bike plate and registration from the right side of the country, rider registered from the left side of the country and multiple border crossings. Entering and exiting the US whenever. Staying in the US for how long, I don't know. What were you doing would be the first good question (to be asked by our border militia, as I believe they carry weaponry now)?
As said many times, keep the rubber side down.
Shep