The phone should have an option to turn off notifications. On IOS it's in the sync Bluetooth connection settings.
More first-world problems-
Leaving your cell phone home will fix it.
Looking for a Used Mustang in your area?
CarGurus has 45,735 nationwide Mustang listings starting at $1,999.
Search Ford Mustang Questions
Ford Mustang Experts
Related Models For Sale
Used Cars For Sale