Can I apply for a Chinese visa at the Visa Centre and have it mailed back to me?

I live in Winnipeg, Manitoba. I will be visiting Seattle, then I will be in Vancouver for 1 day only on May 22, 2012. I will visit China on June 29, 2012. I would like to apply for a Chinese tourist visa in person while I am in Vancouver for 1 day and have it mailed back to my home in Winnipeg. Is this possible?

Another question, if I applied for the visa when I get back to Winnipeg on May 25, 2012, will that give me enough time to get my passport back so that I can leave by June 29?