Earlier quoted context omitted.
Yes. Vancouver sits in a little triangle of land in the south-west (bottom-left?) corner of Canada, completely surrounded by mountains to the north and east. We heavily rely on the highway south through the state of Washington.
Could you take the ferry to Prince Rupert and get out that way?
(I once took a ferry from Prince Rupert to Skidegate on the Queen Charlotte islands and back. It was an 800 passenger ferry, temporarily replacing a 300 passenger ferry I think on the same route which was taken out of service for maintenance. The ferry in question was the ill-fated Queen of the North, which ran aground on a different route a few years later and sank.)