The provisions of any criminal statutes with respect to the exhibition of, or the possession with the intent to exhibit, any obscene film shall not apply to a motion picture projectionist, usher, or ticket taker acting within the scope of his employment, provided that such projectionist, usher, or ticket taker: (i) Has no financial? interest in the place wherein he is so employed, and (ii) freely and willingly gives testimony regarding such employment in any judicial proceedings brought under this Chapter, including pretrial discovery proceedings incident thereto, when and if such is requested, and upon being granted immunity by the trial judge sitting in such matters. (1977, c. 819, s. 9.)