It is absolutely mind boggling that this country has signed all kinds of trade deals around the globe and still has these horrendously backward, ridiculous, narrow minded trade barriers within their own country! Don't know of any other country that fines someone for buying something outside his home province IN THE SAME COUNTRY! 
It's 2017! The Supreme Court should not even have to deal with this as this should have been tossed out, eliminated, ages ago, perhaps by provinces talking to each other? Although, I guess that's asking too much from mature adults/politicians.