Depends on where you live and how they're stored. Give them a wash with water and check that it breaks. Address anywhere that doesn't and dry, wipe down, and spray.
I've done quite a bit of experimenting with this. I live in a generally low humidity area and the parts are kept either in the house or the garage. I've found I can go up to two days with almost no change in oxidization (water still breaks evenly). After about two days I start to get some spots that need attention (water beads). It takes over a month before the parts fully bead again.
I use the Akzo primer and it still adheres fine and can be dimpled without issue.
I've read that salt accelerates the corrosion process but haven't done any experimentation with that.
I've never been to Huntsville, AL but I suspect you have more heat and humidity than I do!