You're in luck. Measurement Canada has the authority to inspect pints. Typically they only act on complaints, though.
https://ised-isde.canada.ca/site/measurement-canada/en/buyin...
I have a feeling that if the USA did random, surprise inspections on businesses to make sure what they were selling was actually as-advertised, the whole system would be exposed as fraud within a month.
I have a feeling that if the USA did random, surprise inspections on businesses to make sure what they were selling was actually as-advertised, the whole system would be exposed as fraud within a month.