In addition to your first use case, multiple airlines are now supporting AirTag for bag tracking.
As is noted on the linked article. Some airlines have specific software that can do it if you share the tag with them - and the sharing will automatically stop when you receive the bags.
alt Hacker News
As is noted on the linked article. Some airlines have specific software that can do it if you share the tag with them - and the sharing will automatically stop when you receive the bags.