Anthony - I am not quite sure I am following here but I think the issue you are reporting is the inability to show a header for a single measure in the way that you can if Measure Values/Measure Names are used. In addition, Tableau removes Measure Values/Names when only a single measure appears in the view. Is this right?
So instead of :
Is that right?
If so - just add [measure values] to the marks shelf and then add Measure Names to the Filters shelf (and Columns) - then edit the Filter manually to only include a single field.
Let us know if this isn't the issue and instead a different issue is encountered. In addition, if it is possible to share a sample workbook showing the issue, it would be helpful.