I've degreased as much of the oil grime that I could get to with Engine Degreaser and Purple Power. Sucks the driveway is dirty now.
As with the multiple dealers I've taken my car to, I now been taking it to the dealer that is has the best reviews locally but even then their service is shady. Since this is my only car, I rather not deal with setting up an appointment, leaving the car there for an unknown amount of time while they fiddle around with my car doing whatever, taking the bus home, and crossing my fingers they'll actually do something. So far it's been more successful and time efficient to just do it myself. I only go to the dealer when the problem of my power to do myself, such as in the case that I may need a new short block. My basic 3 year warranty just expired last month, and I have 2 years left of the powertrain warranty. If the leak is still present ::crosses fingers:: after a couple months, then I'll use a UV Leak Detector fluid, which is what mechanics use to pinpoint a leak.
This video is what I'm talking about, also from the same Scotty Kilmer that I mentioned prior. He has a plethora of great videos to learn how to wrench on your car: