It only does that if you have the stole app open and set up. If you don’t like that feature you can shut the app down, only ever open it when you’ve lost your keys! Simples.
Huh? I don't have the tile app open, and I only have location set for "when using the app".... I double click the button on the tile and if beeps and my phone rings. The card-sized tile in my wallet does the same too. Like I said, regularly happens to me.
I've literally just done it.