Sounds familiar. My dh doesn't trust the map app that I have on my iphone. It's very annoying because I can navigate perfectly well with it, but he's like "err, which direction are we heading in, I need a compass"
You know those things that walk around with arms and legs and heads? They are other human beings! Weird I know! But they have brains and mouths so they can think and talk and tell you things that you need to know!
In the time it would have taken you to launch the app, he had spoken to someone and found out where you were supposed to be, I dont see the issue