Road salt isn't as prevalent in this area as it is in other parts of Canada, even a couple hours north of here. Not unusual to see older vehicles with little or no rust if they've spent most of their life in this area.
Here in Ontario they use salt brine before a storm comes which does the job but it's awful hard on the cars. Then the plows come out and the salt trucks. That brine must be awful hard on the environment as well.. It's very corrosive.