What's going on in Montreal?

I arrived yesterday, having made a car reservation a few days ahead of
time with the company with which I hold " Preferred" status.

When I got there, no car was waiting for me, no cars were available
period, and they told me I was number 4 on waiting list, behind a crowd
of obviously disgruntled customers. They said the wait would be an hour
or so.

I checked out every other car rental counter at YUL, and there was not
1 car available! So, have all the cars been shipped to Calgary?