You actually raise a very good point. Most people, if you don't live/work downtown Calgary, pick their RCR Card up at the ski hill. You can also link your credit card there, and set up direct-to-lift so you never have to wait in line. If you are checking into CLL the night before your first ski day, you would not have the card. They have always asked to see my card at check-in, so it might be worth asking them. I imagine if you show your receipt, that will be sufficient.

Also, keep in mind you have to purchase (but not pick up) these by December 26th