Guys,
I got my passport with visa and copr yesterday (18-01-2016) afternoon via Expresspost. This afternoon, I did flag-pol landing at the nearest US border (Douglas/Peace Arch POEl) from Vancouver. It was a very smooth experience and they just asked a few standard question without asking pof or even proof of address! The officer asked me to right down my mailing address on the CIC copy of copr and initial and sign both. Then he signed and stamped it and gave my copy back. He only asked for my work permit saying that as a PR I do not need it anymore. Finally, after applying for my pr card he said congratulate and welcome to canada and gave me a canadian flag.
Also, he told me that error in original point of entry on copr doesn't matter. I would like to take a chance to thanks all of you for all your helps, thoughts and encouragements especially Diplomatru, pepe, farahnz, kamran, uwaterloo and my dear friend viva. It was a special moment in my life today and I wanted to share it with you. I wish all of you the best in your life.
Cheers