Living in Grey County does have a few drawbacks, and one of the major ones (other than having access to Fibre Optic Internet), is that winters are brutal on cars. We are called the "Snow Belt" after all.
After doing a lot of research, and listening to some very passionate and opposing views on the EV Car Facebook groups that I belong to, I made the decision to go ahead and have our new Leaf rust proofed at Krown Rust Control in Owen Sound. The whole process took about an hour, and other than the minor over spray and seepage that I was told to let "happen" for the first 24 hours, there were no problems. A quick car wash the next day, and our Scarlet Ember Leaf was shiny as new!
We have used Krown on all our vehicles, and have never had an issue with rust. We plan on keeping the Leaf for at least 5 years, and would like to keep it in tip top shape.