Apparently the HA website was having issues the last few days and now they are offering free shipping within the States. As for Canadian customers, I just chatted with them and was told that:
"For Canadian customers we are happy to waive the applicable US shipping portion.
Please find the special instructions box on the final review page and write a brief message such as, "free domestic shipping regarding website issue."
This offer will run through Sunday the 28th for all customers.
There is no code or link that will work for this offer."
So basically they will subtract the U.S. shipping fee from the Canadian shipping fee for your order. I haven't ordered anything, but I guess it's worth a try.