Really, what's up with the people here?
Since when is this the norm? I understand it might be more convenient for all parties involved to double-check everything if possible, but if I made plans, I made plans.
If someone for whatever reason can leave me waiting for 45 minutes to "Hint" they are not showing up, it's their bad, not mine. And yes, dropping a pin is the exact same as sending an address. If they did not want to see you at their doorstep, they wouldn't have shown you their home in any way.