I dont think CAA can necessarily do it all the time.
I had CAA and it did me no good when I needed the tow on the QEW.
I think that the deal is on 400 series, is fixed price tow and clear the road as quick as possible, with the first tow that will get you off the highway.
Reduces the delay and the chance secondary accidents can occur at the back of the slowed traffic queue.
Cant always safely sit on the side of the road waiting for CAA.
I dont know if CAA tow operators actually bid into qualifying to operate in the controlled access tow program.
I may be wrong on this, and would be please to know what the real deal is.