Last I checked, Google can't even list the locations of businesses correctly or even street numbers for that matter. In our town, they have some places as being in the middle of a river, nowhere near the businesses themselves and other businesses listed as being at the wrong end of the road they are on.
Those are just small errors on Google's part. I've tried notifying Google of local errors, trying to submit corrects and it's like no one there gives a hoot one way or the other. I've seen only a few of the corrects get implemented months later.
The easiest way to see what errors are present is to zoom in on a satellite map of an area that you are familiar with and see for yourself just where some of the oddball locations are marked.