I wonder if this would work for when I need to pick my kids up or some friend at the airport. Basically tell them to wait inside while I share my location. The

I wonder if this would work for when I need to pick my kids up or some friend at the airport. Basically tell them to wait inside while I share my location. Then have it alert them when I'm nearby so they can come out. This would be really helpful for the airport situation, as I wouldn't even need to park.