Originally Posted by james t kirk

Dude, hate to tell you, anyone is "able to leave Canada" by simply hopping in their car and driving to the boarder.

It's not up to Canada to catch them leaving, it's up to whatever country to catch them entering.

All this guy does is prove that the system worked.

The same goes for those leaving the USA. The US gov't doesn't care about people leaving the US, doesn't search them, doesn't ask them a single question. They collect the toll before you cross the bridge and that's about it.