My XS walked off a few days ago and I’m not sure that “find my iPhone” was on. I thought it was but iCloud says it’s off. I assumed it was because the person my phone walked to turned the phone off. It’s not showing up at all in “find my”. I can’t activate lost mode nor can I remotely erase it. Today I took a look and “find my” and “iCloud backup” is no longer listed under the phone. Does this mean they tried to wipe it? If I went to an apple store would they be able to help me at least blacklist the phone?