This is a poor attitude and does not serve your patients. If you do the right thing for your patient, you cover their ***. This is how you "CYA" (such a silly phrase; I suggest you drop it).
If your physical exam does not correlate with an unstable SCI you have no business placing them in a C-collar and strapping them to an extrication device. "CYA" is not an indication I've ever seen for any procedure.
Crews who do this sort of immobilization at our service are given remedial training, which can lead to disciplinary actions if they do not improve performance.