A little late on this topic but information for others that may not have found this. Pretty slick workaround to this is to use line command, then osnap to the feature you want to check (but just float on the snap and escape command after) - this will give you station and offset (in the dynamic info box) from all possible alignments in the drawing (note: some of the others here at our office have this feature only working 1/2 the time - the rest it will just pop up with whatever osnap they are trying - we are still trying to get to the bottom of this).
Great for determining intersecting alignment stations, offsets/stations of manholes, cb's etc
Only thing this can't do is query exact to the proposed alignment within profile view. Seems the 'profile' feature of 3D is not a recognizable autocad feature and the osnaps don't work on it, yet the 'alignment' feature is in plan view.
See attachment if the words just don't make sense!