I frequently receive requests to label coordinates in Civil 3D. This can be done, but only with a point label or with an alignment label. To add in the surface elevation requires reference text. Follow the link to see the style that I created to do this as well as an image of the style.
Here is the style – keep in mind that it requires an alignment and a surface (ok, the surface should be self-explanatory, but I thought I’d throw it in there anyway)
The file can be downloaded here.