In the video and in the blurb on the page, it refers to CES day 2.
The opening keynote was on Jan 10.
That means day 2 was Jan 11.
At the 4:33 mark in the video, the "My Car Zone" includes "Geo Fence" alerts up to "Jan 9, 2012 8:01PM-10:31AM". This suggests they moved the vehicle on the 9th for the opening day of the 10th.
So all those seem to jive. "Last week" would thus mean sometime between Jan 1 and Jan 7 for a normal person. Hopefully S.K. Tsuyuzaki is a normal person in at least this regard.