Ibilola
I would suspect that there is likely a pretty big curve in the CF when it comes to the levels of understanding of the US Warrant Officer program, and if there is a grey area than a Base Commander or CO certainly has it within their purview to interpret the situation as best they can.
Having said that, it shouldn't happen, but surprise surprise - it does. I would suspect that the US WOs affected probably just grinned and bunked in where they were told, because it wasn't worth rocking the boat.
In my experience, under existing agreements between Canada and the US (not to mention NATO) we have to give the US personnel the same standard of respect/courtesy they are entitled to under their system.
For an idea of what respect/position US Army WOs are given, one only has to check the US military publication FM 22-100;
"Title 10 USC authorizes the commissioning of warrant officers (WO1) upon promotion to chief warrant officer (CW2). These commissioned warrant officers are direct representatives of the president of the United States. They derive their authority from the same source as commissioned officers but remain specialists, in contrast to commissioned officers, who are generalists. Warrant officers can and do command detachments, units, activities, and vessels as well as lead, coach, train, and counsel subordinates. As leaders and technical experts, they provide valuable skills, guidance, and expertise to commanders and organizations in their particular field."
(Para A-3, Field Manual 22-100)"
Oh well, I suspect that Canadian commanders will continue to interpret their understanding of US Army Warrant Officers, based upon their experience. Unless of course a US military commander intervenes and asks for his personnel to be treated as the commissioned officers they are.
On a slightly different track, the NATO equivalences chart lists a Canadian MCpl as being equivalent to a British Army Sergeant. Both are considered E-5s. Based on this I have seen several MCpls (from different Branches) given SNCO quarters/messing in the UK. Although, if they are there as part of a Canadian unit, the unit CSM/RSM would generally tell the Brits that the MCpls will remain in JNCO barracks/messing.
Rgds....