Agreed that CPF are not SAPS members, this is because they are not employed by the SAPS, under the SAPS Act. I am not sure what you mean by "warrant card", there is no such thing. SAPS members have an appointment certificate, in card form. Even civilians employed by the SAPS have an appointment certificate, signed by the national commissioner, as do NCOs. Officers' appointment certificates are signed by the State President.
All civilians are referred to, and treated by the SAPS members as haasmanne. This has been part of the SAPS culture for many decades. The SAPS will close ranks on haasmanne, they are seen as outsiders to the service. There are very good reasons for this, it worked well under the previous dispensation, partly due to the fact that the police were militarised and had high standards of discipline, but it is abused to a large degree with today's completely useless SAPS, which is devoid of any pride or standards whatsoever. These days only certain portions of it are militarised, like the VIP protection services, at the whim of the esteemed minister (who, as a preschool teacher does not understand hasn't a cooking clue on anything military but has a morbid fascination with it nonetheless).
The CPF is a complete sham. The community policing model was and is very poorly understood and implemented, and its primary purpose was to seek and regain the trust of the public through engagement and openness. It's a twin headed dragon, one head facing the public with a fake smile, and the other maintaining the barriers of old, protecting members and closing ranks on the public. In the middle is the police service itself, which, due to the fact that since 1994 it has had completely unqualified, inexperienced and useless leadership, has deteriorated been completely destroyed by all previous ministers, national commissioners, and their appointed senior officers.
Another completely failed social experiment with one of the most important organs of state.