I think the more you try to avoid other people parking next to you, the opposite will happen. Either that, or the way people act in your area is different than my area.
I've parked my Z in the middle of parking lots (at a grocery store, at Best Buy, in a paid parking lot), not away in the corners, and I don't run into any problems like people parking too close to me.
I think people here just don't really care about the car I'm driving so I don't get as much attention as some of you guys.