Given the prevalence of geofence warrants nowadays, I don’t think the situation needs to be especially nefarious in nature. Perhaps you don’t want to be scrutinized just because you and 370 others were within 300 yards of a crime occurring?
My understanding is the power off tracking uses NFC. This is encrypted. If Apple’s documentation is to be believed, the location information cannot be decrypted by law enforcement.
Every situation, but I was trying to frame it more softly because I was expecting a large percentage of these comments to say "I don't just not mind being tracked, I want it now!" and similar thoughts.
https://www.theguardian.com/us-news/2021/sep/16/geofence-war...