Some friends of ours used to have a cabin on the Idaho/BC border, about 1 mile from one of the teeny tiny crossing stations. Up there it's really easy to ride right up to the clearcut that marks the international border, on a mountain bike. Late 90's DH was biking solo and somehow ended up on the Canadian side and came back on the road. Shirt off, no ID, not even a camel back..... boy did the US guard give him the third degree. The US guys are always assholes anyway, but he was being ridiculous. You can practically see the cabin from the guard station!