No the only protection on a new car is the dirt/grime/haze.
For shipping they usually put a spray sealant on before they apply the shipping plastic, but all that does is seal the crud in.
I live by the sea (less than half a mile to the beach as the seagull flies and invariably poops on my car!) and am pleased to report after 3 weeks that they don't like pooping on grey cars!)
Dealer will only wash and dry the car, they won't do more unless you buy their overpriced protection package...then you can guarantee that it will be done badly, as it's at lowest cost/quickest time.
A professional valeting company will want your car for 1.5 - 2 days and it will cost a lot less
Or, if you have the time and the products, you can do it yourself, but currently in the UK I can't guarantee a rain free day, so best left to a professional with the facilities.