It was not clear from your original question what kind of parameter you are after.
AttributeTag is another type of parameter user can define, not to mention PropertySets (That’s another story alltogether, coming from AutoCAD Architecture).
Dynamo for Civil 3D is similar to Dynamo for Revit in a sense that without knowing software well (ideally, how the objects of the dwg file database are called in API language) you might find learning curve very steep.
Looking at your examples and that you are insisting on using Civil 3D (not a plain AutoCAD), I would recommend using CoGo points, this will not only allow you to pace them by csv file, but also such stuff as dynamic tagging, assigning styles for how they should look like (by picking a block essentially), annotativity and User-Defined Properties (Only if needed). CoGo’s already come shipped with some fields you can use to populate values in.
Most of what CoGo points can give you is Dynamo-free as well, but @Paolo_Emilio_Serra1 implemented quite a few nodes in Civil 3D Toolkit to have a play with Getting-Seting all sorts of parameters for them. It sits under LandDevelopment part of it.
As per your screenshot above, you can get Block Coordinate System instead and then calculate angle between base vectors and the ones you retrieve. AutoCAD only shows Rotation in a properties tab, but it is not actually a parameter of a block instance. Also Rotation value depends on what are the settings for angle calculation (Clockwise vs CounterClockwise and from what base angle - N, E, S or W) in UNITS of the dwg. So it might not match the ones you retrieve by Dynamo query.
Hope that helps.