Dave, you leave the kris in your car and first talk to the
raqi ("exorcist") about it. Then later you can bring it (wrapped) when he has confirmed his interest to read on it. Who knows, having a (confirmed)
jinni residing in one's blade is perhaps a value bonus, like having a good provenance?
However, I once tested to bring the same two keris (a really old Javanese and a keris sajen) to three different exorcists (general new age, spiritualist/theosophical and ritual magic). All of them felt more "energies" in the sajen but they had different interpretations of what kind of energy that was residing in it.
Michael