Wax will not protect it any more, but will help cover and buff marks or fine scratches for a better look.
The paint manufacturers say to wait 30 days before waxing so the solvents can finish escaping.
No problem painting over it. Just clean and sand like you should be doing every time anyway.
Armorall is a big NO NO!!! It will contaminate the surface like you can't even believe! ...and don't ever... under any circumstances... use it in your shop! If you do, you will find out why I am warning you so strongly! }:-(