The law has changed in Canada, intl students can now work off campus.
http://www.cic.gc.ca/english/press/03/0346-pre.htmlWorking off campus
The Off-Campus Work Permit Program allows foreign students at publicly-funded post-secondary educational institutions to work off campus while completing their studies.
Publicly-funded post-secondary educational institutions are:
public post-secondary institutions that have signed an off-campus work agreement with their provincial or territorial government; or
private post-secondary institutions that operate under the same rules and regulations as public institutions, receive at least 50 percent of their financing for their overall operations from government grants, and have signed an off campus work agreement with their provincial or territorial government (currently, only private college-level educational institutions in Quebec qualify).
Off-campus work is available for students studying at such institutions in provinces or territories that have signed agreements with CIC. Check the list of participating institutions. Participating institutions are eligible institutions that have signed an agreement for the Off-Campus Work Permit Program with their provincial or territorial government. (
http://www.cic.gc.ca/english/study/work-opps.html#offcampus)