I never limit salt. The only "bad" thing about salt is the water retention that can come with excess salt. BUT, if you are drinking enough water, that shouldn't be an issue.
Salt has limited impact on blood pressure if you are healthy. If you already suffer from high blood pressure, or are borderline high, then you should think about limiting salt. Plus, if you workout regularly, that should help keep blood pressure low.
I am a salt FIEND. I love salt. I have always kept salt in my diet - even a very strict clean diet. It never impacted my gains.
As for protein bars, keep them out, unless necessary. I always have them around, in case I get hungry unscheduled, or I get caught somewhere longer than I planned.