First off, get a friend that isn't a total dumb sh*t.
Second, if you clean the affected area with a small fine sanding disk on a Dremel that should be good, get it really clean afterward with some isopropyl alcohol, the kind you can buy at the grocery store if you don't have some already, wait for it to dry (maybe a minute at most) then use the brush in the cap of the touch up paint and do a thin single layer at a time to get it up to even with the rest. Once it is dry and fully (FULLY) set, (24hours) use a mild paint POLISH. You want a mild abrasive polish. If you want to go super fine afterward, use mothers metal polish. It is safe and does not contain any iron oxide so will not leave anything that can rust. Once you have it pretty smooth and even from the polish, then again wash and wax the car. It won't be *perfect* but it will look great and not be an immediate eyesore unless you are specifically looking for it.