Maybe just a clarification but (in the USA and I suspect in Canada) some (if not all) scuba certifying agencies require the dive shop to get their compressed gas analysed by a certified lab on a regular schedule. Additionally, the dive shop needs to be operating under a Scuba Certification Agency in order to get Insurance.
If this is the case with the dive shop involved (and I have no idea the name of the shop or care to know) then it would hardly be called "of their own accord".
John