Are you sure it's 160? My membership is 200km free, and, at least as far as towing distance is concerned, I thought there were only 2 options, 20km and 200km. I got towed about 185km last summer, absolutely no charge, though I did tip the driver for helping me try to bump start it, then being a great sport with my daughter in the car, who wanted to listen to Lion King for 2 hours
He was really careful with my car - I specified flat bed, and that was no problem. He was a car guy as well - into drag racing 80s mustangs. Not my cup of tea, but at least we had something to talk about on the long trip.