This gets a fine for tampering but everything surrounding Kevin Love, including coming to a contract agreement behind the scenes, gets nothing... Awesome NBA.
Generally speaking, so long as no public comments are directly made by anyone who is a direct employee of the team, nor is there any actual written agreements or electronic transmissions which can be directly attributed to such individuals, there is nothing the NBA can do.
None of this, to my knowledge, has happened in the Kevin Love situation. It's merely media speculation. The NBA has no control over that.