First of all

> The bill does not automatically impose fees on vehicles, but it “just gives BC the tools to do so down the road if Trump continues to escalate his threats towards BC and Canada,” according to a statement from the provincial Ministry of Transportation and Transit.

Also this

> The government of British Columbia filed legislation Thursday that would permit the province to levy tolls on vehicles between the Lower 48 and Alaska.

No one is yet doing anything and no one is cutting anyone off.