how to get rid of diesel smell inside of cab

We had a diesel fuel leak on our Phaeton. It was leaking where the return lines attached to the fuel tank. It was the "perfect storm" of leaks as it sprayed directly into the electrical chase that runs front to back along the frame rails. Got inside the wire loom, etc. Mechanics opened up that chase, removed all the wire loom which was dripping with fuel, and used degreaser to clean out the chase and to wipe off the wires. We've been told previously that diesel does not evaporate, so it would be hard to get all the smell. It does collect dust, so perhaps after it gets enough dust/dirt on it, the smell will dissipate. At its worse, we had to open all the bay doors and windows and let it air out so we could even sleep in the coach. It is much better now. We do still smell it some, but not like before. May try the coffee grounds trick.

Dale