Two languages, but they could use a few more

Sign in the parking garage at YVR, Vancouver International Airport, Richmond, BC

Vancouver is a multicultural society. It has been reported that it is the "Most Asian City outside Asia". (Source: http://blogs.vancouversun.com/2014/03/28/vancouver-is-most-asian-city-outside-asia-what-are-the-ramifications/)

There is a large South Asian population, and, most important in this case, a very large Chinese population.

So why is this sign at the Vancouver International Airport only in English and French? Well, air transportation is federally regulated and the Federal government is a bilingual operation. But shouldn't these signs be about the customer and just not about the government. Yes, include French, but how about also including Chinese? Or Punjabi?

I wonder what it would take to get the airport to change the signs?