To the credit of B&H, they're now stocking a good selection of Photog Formulary products, including bulk chemicals. And I generally prefer to buy from them because there's no shipping charge. But with respect to glycin itself, I recommend buying directly from PF instead, so that you can be assured of its freshness. To my understanding, they make their own glycin, and it's a evidently a popular enough ingredient to keep their own inventory turning over reasonably fast. Retailers are a different question - you just never know.
I do understand the predicament. I was the buyer for sake of sales of quite a few perishable products. For example, the best construction caulks are basically pre-catalyzed, shipped in volume in refrigerated trucks, and meant to be sold and used within six months. But I almost had to threaten the warehouse crew with flogging to get them to conscientiously rotate the inventory. The only person who did it well was actually a mentally handicapped young fellow, who was assigned to the caulkings exclusively. Gosh knows what a mess it would be today, with one of those product lines being made in Canada.
Maybe you Calgary folk could start your end of the smuggling tunnel first. If it springs any leaks, you'd be easily be forgiven for helping yourself to a tube of waterproof caulk from time to time.