[Former Proud Canadian]

Before 9/11 US Border Patrol NEVER attempted to stop people or vehicles leaving the US. Since 9/11 they do stop individuals or groups trying to leave, don't ask me why.

[SirFishalot]

News to me, I live ten minutes from the peace bridge, have owned a cottage in Sherkston Ontario for close to 30 years, and cross the border into Canada at least 100 times a year. I have never been stopped leaving the US, or Canada either, I repete, Never.