The Truckers could simply announce to the general public to stock up on anything that is left because in seven days they will leave Ottawa, drive to their homes and park the trucks.
Make no mention of how long it will be before any of them turns a key again.
Let the general public do the job on the politicians.
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These are independent truckers. The large trucking companies are not part of the protest. Many of their truckers are in the protest but not with their trucks.