Sure enough -- Fr. Chazal was completely innocent. Canon Law requires that the Blessed Sacrament be under several keys: the tabernacle, the building itself, etc. If the tabernacle doesn't lock for whatever reason, the Blessed Sacrament must be removed. Fr. Chazal did exactly what he should have done in those circuмstances.
Why am I not surprised that the Pfeifferites were playing games, changing locks, messing with the tabernacle, etc. How do they look at themselves in the mirror or sleep at night? They're clearly of bad will. They need to meditate on the shortness of life, and the great length of Eternity.