I would guess no. Typically some polishes can be used on fresh paint (like PB's) but usually waxes/sealants are not recommended as they may adversely affect the curing.
Yeah you can Polish it with Professional Polish or SSR1, but no wax or sealers. You can use Spray & Gloss to maintain a great glow and shine.
The guy who painted it is the guy who has to stand behind his work, so it's best to follow his advice