The Canadian Trucking Alliance has a list from across Canada, click here for this one.
And have a look at Meals for Truck Drivers BC for food trucks at card locks as well as offers from other restaurants providing take out (or delivery) & washroom access, often with truck parking available. We continue to receive sponsorship offers for food truck meals - keep an eye out for announcements about complimentary meals for truck drivers on site and at the @feedatrucker Facebook page above.
Thank you & take care out there! Remember to check back for updates.