I doubt dealers will help you turn off any "Chirps" because there are legal ramifications.
Many software-controlled features of the F56 MINI Cooper SE can be modified using the Bimmercode app, including start-up sounds, seat-belt warnings, tail-light brake patterns, and, best of all (for me), activating the secret AM radio. However, the Bimmercode menus are in German, which makes finding the feature you want to modify difficult. Here's a long thread about the app: