IDK about rust and corrosion due to road salt; no idea how much you encounter in VA or what is on your car in particular.
There are aftermarket adjustment cams that can be bought for a lot of cars to allow camber & caster adjustments. Google camber/caster kits for that car. There would be the fronts for certain; rears, maybe, though would not need caster. Rock Auto does not carry them but other sources do.
Question before doing all that: what is the actual camber reading vs. what is specified? It may be off but not by an amount worth worrying about, and may not make a noticeable difference in wear on that tire. Benign neglect may be your friend.