Being a nurse I got a lot of ink on my uniforms. Hairspray can work because of the alcohol in it. I always had good luck by placing the garment on a thick layer of papertowels, then soaking several paper towels with alcohol and then blot, blot, blot. Move the paper towels under the garment to a different area frequently and change out the ones you are blotting with. The ink seems to move in to the paper towels underneath and into the ones you are blotting with. When you get as much out as you can then you can wash. I usually put Lestoil on before I washed (just for good measure), but probably wouldn't have to. Check on an unnoticeable are first, but usually it doesn't damage the color.
Hope this helps, good luck.