Just wanted to provide an update on the purchase issues I had with Best Buy. After completely striking out with the store on getting my situation resolved without flying back to Calgary, I posted my Yelp review. Best Buy Canada contacted me and has now completely restored my faith in their brand if not this particular branch of the store.
Caroline of their Customer Experience team managed to do exactly what I wanted with the warranties and without much fuss or bother. If only the store had bothered to pass me on to her team in the first place!
In the end, I am still friends with Best Buy, but I think I will try other branches in Calgary.