I did the same thing with my Mango. She was first trained to go outside in the dog run. But there were days I would need her to go potty in the garage (concerns about Rattle Snakes in the heat, and Hawks). I did exactly as suggested above - rubbed the pee pad in a recent pee, put it down in the garage. I did do one other thing. When training Mango to go potty, I always used the same words -"Mango, go potty". When I placed the pad in the garage, I took her there, placed her on the pad and said that command over and over until she peed, then gave her huge praise and a treat. She was going potty on command in the garage in less than 2 days. It is not too late to train your Calli.
By the way, please send love to Lisa and Matt. Tell them I hope their vacation was wonderful. Sukoshi seems to be having a ball at Misty. I leave with my Hubby for our trip on Friday, so will miss the next meetup...
Lauren
P.S. You have the most delightful daughter.