No. That's only doable if you do individual sports such as boxing, tennis, golf, where you are free to take residence anywhere, or if you play for Monaco FC ;-)
Fascinating place, Point Roberts. I've read a number of people from surrounding localities go there for cheap goods (Canada has 12% VAT, US does not). Also, I heard, popular with witness protection since you have to cross the border control to drive in there (which could be a problem for somebody who is a felon).
