I will start off by saying, I am so glad that you are ok. I wish you a very speedy recovery.
I can tell you one thing, DONT FUCK WITH AMERICANS. Your going to have to pay the bill, or probably never be let across the border. People who get busted here in Canada for 1 single joint can NEVER go to America again. They take dope and debt seriously. So just don't fuck with them. Give them all your money, fingerprints and an iris scan while your at it. I am serious.
Secondly, the cost of an ambulance, airlift and even walking into the hospital is going to scare you. I am guessing anywhere from $5000 minimum up to $10,000.00
So you may want to forgo future lift passes and start saving.
It sucks, but your alive. If your over 18 years of age and didn't buy insurance, I am kind of dumbfounded. I agree to check all your credit cards. Many have insurance built in. Check with your parents and see if they have a policy- perhaps they bought an annual policy if you have travelled abroad recently. I dont' think Canada is going to do anything for you, but be sure to let everybody know the outcome because this isn't the first case and won't be the last.
Sorry about your luck bro.