How to correctly display the Canadian flag vertically on a wall?

At the iceskating rink here in Boise, they display the flags of Canada, U.S., and Idaho. (I guess the first may be due to visiting hockey teams.)

This is how it looks

http://www.martingrumet.com/iceworld-flags.jpg

Hung on the wall vertically, the tradition for state flags is to show the obverse side, as shown. Like Idaho, most have mottos that would not look right reversed.

The tradition for hanging the American flag as a banner or on a wall is that the Union (blue field of stars) should always be to the viewers' left, whether horizontally or vertically. So that means that displayed vertically the reverse is displayed. The way that it is seen in the photo is correct.

The way they currently have the Canadian flag vertically hung seems to be showing the reverse side, with the Maple Leaf blade to the viewers' left and stalk to the viewers' right.

Does anyone know whether that display is currently correct, incorrect, or no particular rule or tradition for this?

If there is a known rule the display contradicts, I can let them know.