There's a parking garage that I want to pour oil all over.
I don't understand why you would pour oil down the parking garage?
It's no problem to me. From what I see, if you do something like this, you get a little attention and you get your message out there.
You are going to damage other people's cars. This will easily get you arrested and I don't think this is the kind of attention you are seeking. It's not going to be fun and games when you are sitting behind a police vehicle.
I feel like this is my only option to get attention.
Why would this be your only option? You can get attention in so many different ways. Why not just pick something that isn't so negative like damaging other people's property?