[WS SIKZ]

so i was at work last night im a waiter at the venetian in garfield and the car was there after i washed and waxed it. this morning my dad said some one scratched my car. i ran outside and see a key mark about a foot long than stopped than like antoehr 9 inches. those two lines went straight to the metal and there were some other marks that i buffed out.
the question is how do i repair it do i have to get the whole door repainted or can i just fix the scrtatch??