Would there be any issue taking a tuned/deleted diesel to a dealership for a routine repair (U.S.)?

I have a regular indy that I get my work done at, but my local BMW dealership is offering a promo where you can take 20% off a repair along with a free multipoint inspection.

I’ve been needing to have my bushings replaced, so I was thinking of taking it there to take advantage of the promo and have everything else thoroughly looked over.

Has anybody taken their deleted diesel to the dealer for service before?

I planned on telling the service tech that it’s deleted and with a custom tune and to not update any software or really do anything with the computer.