If you remember the approximate location where you might have lost your Leaf, you can use a Bluetooth scanner app to try and find your Leaf.
If your Leaf is within 30 feet, it will show up as Leaf [XXXX] in the app and then it’s just a matter of looking around to locate it. The scanner will also show you a number underneath the Leaf's name like this: RSSI: number dBm, and the smaller this number gets, the closer you are to your device.
In case this doesn’t help, please reach out to us at firstname.lastname@example.org so we can disable the Leaf. This will prevent unauthorized usage of a third party.