You can actually fix that yourself.
If that's paint from another car "stuck" on yours, you
may be able to get away with using a clay bar or rubbing
compound to get it off. If not, you can touch it up
yourself...see below.
Supposing your car is Nile Black, go to paintscratch.com
and order some "Obsidian Black". ( don't know why they call
it that ). Also get some clearcoat.
Sand out the imperfection, starting with a rougher grit,
like 220, then progressively finer, ending with say 1500
grit. Keep sanding until you can't feel the spot with
your fingers.
Then, clean up the area completely. I finish with a very clean
rag with some alocohol or solvent. Once it's dry, tape off
the area around the problem, but leave lots of room around it
untaped. Say 6-8 inches all around. Make sure the tape is
masking off anything you don't want paint on. I use tape
and brown kraft paper at least 2 feet wide to catch any overspray.
Spray using the rattlecan from paintscratch *very lightly*.
The trick is to sort of "fog it on" lightly in several coats.
Don't get impatient. The clear coat isn't in there, so when
it dries, it will be dull. Blend from heavier over the sanded
part, to very light towards the edges. You shouldn't be spraying
anywhere near the tape you put on.
Now that it's dry, apply the clearcoat. Same "light coat"
theory.
Let that dry for several days.
Now, using polishing compound, shine up the clearcoat, and blend
the feathered edge you painted into the old paint. Takes lots
of scrubbing. Plan on at least 1/2 hour of doing this.
