Yes, I know there is a difference, but he could have said he was a Ranger when talking to a homeless guy, because he is one, but to make the mistake of calling himself SF, is bizarre.
The Army counts the tab wearer as being a Ranger, as well as the scroll, but the tab alone does not put one in Special Operations, only the scroll does that.
When I wan in 2nd Ranger Bn, we looked at guys with a Ranger tab, but not in Bn as Ranger qualified, not a Ranger. That was reserved for guys serving in Ranger units. Just my 2 cents.