I just turned mine off and chucked a microfibre over it in the driver's storage cubby. Dealer was non the wiser. If you are worried about forgetting to turn it off, stick a post-it on your dash, but don't forget to remove the post-it. Or have a post-it to tell you to remove the post-it telling you to turn the pedal box off, lol.
I had no trouble remembering to turn mine off, but did forget to turn it back on after I collected the car and thought the dealer had broken my car, then I remembered! Driving through treacle doesn't begin to describe it. Good luck with the service - do not wash hangers/signs at the ready, pre drop off walk round etc, etc.