🚀 go-pugleaf

Try white rubbing compound, but dilute it with a little water
to make it more controllable.  Go carefully.  You'll develop
a feel for it's cutting action pretty quickly.  A more rapid
method is to use 600 grit silicon carbide paper, with a generous
flow of water.  Actually, a similar thing happened at the U.
of Texas, and the contractor posted a notice that everyone with
splotches (in this case, of roof coating) would get to have
their paint jobs repaired professionally, covered by the
contractor's insurance.  You might at least contact the painter
about it first.

I'd also recommend a wax like Classic Car wax, which has very
fine abrasives added for polishing as you wax.  Try it on the
paint spots first.  It may be sufficient to remove them.  They
couldn't be as tough as the paint on your car.

Another point.  Paint dries from the outside in.  The drying
process tapers off after the skin dries.  Some body shops let
the paint set for 30 days, then go back and compund the top
surface off to let the rest dry out well.  If the car is waxed
during the first 30-40 days, it slows the drying of the total
coating.  Best just to keep it clean, do a light compounding,
let it dry another month, and thereafter wax.

Good luck.
fbr@utastro.UUCP