It's hard to make an example of a country if the effect of your actions are negligible on the country's economy and only unite domestic politicians/the populace to dislike Saudi Arabia. All of which are occurring right now.
I've spoken to a few Canadians about this and they're surprised and annoyed, especially at the 9/11 Twitter graphic. And I said earlier, Saudis actions will have a limited effect.
1) Selling Cdn assets - Canada is a great financial investment. It'll be bought up by Canadians or others within two weeks.
2) Taking Saudis out of Canadian hospitals - More freed up beds for Canadians and others
3) Removing kids from Canadian universities - There's millions of Chinese and Africans who would kill to get a spot.
4) Getting the support of Egypt, UAE and the Palestinian Authority - Canada doesn't have a huge trade relationship with any of those countries