Auto body repair & detailing: Scratch on rear door, toyota avalon, touch up paint

Question
I just bought a 2000 Toyota Avalon with a large scratch on the right rear door. I may not be able to repair it for a while. My question is, Is there somethin I can cover the scratch with so the area doesn't get worse ? I thought about touch up paint but it's a large surface area to cover it with.  

Answer
Touch up paint is your best option you can also get paint in a arosol can to match your paint from your local Napa type store. Just dab the area with a small paint brush or spray with the arosol can.
        Thank you for the question!
        Ken