When we talk with our roadside assistance colleagues from other Canadian provinces, we find that the number of stored and abandoned vehicles is the same everywhere, proportionally. For example, in the maritimes, where there are fewer heavy vehicles associated with the Driver Inc. model, of course, there are fewer vehicles stored in impound lots.
I believe that from western Canada to the maritimes, Quebec and Ontario are major arteries of the road network on which many trucks associated with the Driver Inc. model operate, particularly on major roads like highways and the Trans-Canada.