It was at the peace bridge which is a little weird, I've crossed there and had to go inside many many times. The building is quite small as well. If you look on

It was at the peace bridge which is a little weird, I've crossed there and had to go inside many many times. The building is quite small as well. If you look on the maps you can see it's not like there's a 'visitor' area, just an employee lot. There's also a u-turn to return to America without passing Canadian customs on the Canada side, but you're going to still have to explain to the Americans why you're crossing. My money is on this being how it happened. All of that aside, thinking about it more, it's kind of weird that they'd even ask him to go to the peace bridge to begin with instead of any other CBP point in the area