Sprayed oil on my engine

What is your question?

I accidentally had the wind spray oil across my engine this morning. I have wiped off what I could and used dawn dish soap and warm water to try and clean it. I do not have access to a sprayer. There was no oil puddling so it wasnt a lot but it most likely is more than a capful. The engine was off and has remained off. How do I know if its clean and safe to drive?

How long has your 2013 Subaru Outback had this problem?

Started today