Re: Why is the map being shown?
In that case I would say that:
1. this is not your adwords ad, rather a local (unpaid) listing.
2. It's a location extension, and if you are not satisfied you can change that with adwords. (not express though)
3. Any chance that the G+ local / places page was used for the destination URL?
4. All of this is talking completely out of the side of my neck, because I don't/can't see what you are, and I am completely WRONG no matter what I suggest as a possibility.
I'm leaning towards option 4.