Problem with acrylic paint is that it disolves when you use thinners on it, 2pac doesnt have this problem.

I'ed suggest getting some sort of touch up pen, doesnt subaru give you a lipstick bottle when you purchase the car?

Also be careful and make it as small as possible, as you will notice that the if you use a lot when the paint dry's it will dry almost a black/grey color.

Best solution dab the same spot over a period of time, this way you are slowly fixing the problem. Then when happy polish over the top.

It will never look the same as the rest of the car but by keeping the touchup small it will be a lot less noticable.