Overlaying of grid onto surface & extraction of node coordinates

I assume the following is possible, I am just not sure how to do it in Civil 3D.

I have a surface and want to overlay a a grid of spacing X on top of the surface.

I then want to extract the x, y & z (interpolated from surface at the grid node) coordinates (nodal numbering also if it was possible although if not this can be post processed) of each node (corner of each grid square).

Any tips on how to accomplish this?

1] _SURFACEEXPORTTODEM to generate a grid Dem file from your Civil surface

2] with the freeware Microdem, import the resulting Dem and export a X,Y,Z text list of node coordinates.

Another way, use array to create Autocad "points" then you can drop points onto surface and add to a group which will auto number etc then export out.