I have a two car garage. My wife has a trailblazer and parks on the right which is on the side where my small work bench is. She pulls in so far that she never leaves me room to work or walk. Sometimes she has even tagged the camping gear stored under the workbench. We could'nt swap sides cause she likes to get out of the car in the center as to not have to step around the mower, rakes etc...
I rigged up a x10 motion detector and fire off a light right in front of her car when she is in far enough in and shalts come no further.
Ahh finally, walking space in front of her car. It's been years.
I have her using x10 in the bedroom for the lamps too.
:Ron