I phoned MEC to ask about salt tablets, and while they still didn’t have any they recommended another place I had never been to before. I phoned and they did indeed have something quasi-salt tablet like. After work, I went and got a bottle for $28. I’ll try one out on my run tomorrow evening.
Then I immediately went to Fast Trax to pick up a missing part of my Blackfoot ultra race package. (I won’t get into the details of that. Just a new/weird piece of clothing.) While I was there, I discovered they had the same salt tablets as well. For $3 cheaper. Also available in a much smaller, more convenient bottle. (Thankfully I hadn’t missed them the last time I was there; They only got them in the past week.)
So now I have plenty of salt tablets. Contraband no more.
I hope they are actually useful to me.