First stage rockets are not built for that type of landing.
http://spacenews.com/spacex-reports-no-damage-to-falcon-9-first-stage-after-landing/
In the link above you can see what their first stage rocket (after landing). There doesn't seem to be any room for modifications.
Something that recently caught my attention was the slowing of light particles - and keeping them slow. Light naturally slows when passing through transparent mediums, it is only in a vacuum that light move at it's true speed. By passing light through a mask made of transparent liquid crystals...
You have a good point, though it seems you've missed Space X's objective. They wanted to prove that a standing landing was possible. This is meant to reduce the cost of space travel for future missions. Traditionally, after ejection, the first stage would just land somewhere in the ocean to be...