Wheel well treatment?

I have two choices for parking - I can park my Cruze on the street and take my chances, or I can park in my driveway. The driveway is the way to go, but I have to drive down an unpaved alley (limestone gravel) to get there. Which makes keeping my wheel wells clean a challenge.

Is there anything I can put on the wheel wells to keep them looking black without ruining something or making a big mess? I have thought that using Tire Foam or Armour All would work, but I wanted some input before I did it. Maybe everyone does it, or maybe it would be a mistake. I will definitely be treating the tires, but I wasn't sure what to do inside the wheel wells. Does that stuff attack paint, or are there any other consequences of spraying it inside there? Do dealers put anything inside there, or do cars come from the factory with anything applied?

Any feedback is appreciated!

I have a 2012 AT LT1, Blue Granite Metallic. Picked it up on June 8 (two weeks before the recall was announced). I think I want to keep the engine shield intact. It was designed that way for a reason, and if it's only being modified to allow sloppy oil changes, I think I will be skipping the recall and changing the oil myself.

I love my Cruze! I do seem to have a problem with the finish, and I'll probably post a thread about that later, but I am very happy with my purchase. I hope to keep my Cruze for a long time. And I am glad this forum is here.

Terry