A couple of days ago, Google+ Local pages were not properly showing local photos.
Instead, Google was showing exclamation points in place of the photos.
It seems like Google just fixed the issue with this.
Jade W. from Google wrote:
Seeing a bunch of reports that exclamation points are appearing on local Google+ pages instead of photos. Team's looking into it. You can post your examples here, may help us track it down.
I'll come back when I've got an update.
Shortly later, Jade updated her post to say, "Edit: Thanks for your examples -- all appear to be fixed. Let me know if you see any pages that still show the exclamation points."
Here is a picture of the exclamation point graphic used to replace the photos in Google+ Local.
You can see a screen shot of the page with the issue on Mike's blog.
Forum discussion at Google Places Help.