At some point it becomes a question of whether or not he's willing to change his behavior to make you feel better. Some sort of empathy/kindness thing. Even if he didn't understand why it frustrates you, an empathetic person would change their behavior since it doesn't inconvenience them all too much to, for instance, send a picture of the thing via text messaging to you.

Another thing to consider: Is the happiness he gains from "sharing" life greater than the frustration you gain from walking all the way over to see whatever it is?