Levante players after the match had a bit of a meltdown. Summarising their view: La Liga would have been over tonight if Madrid lost, so the ref made sure they won.
Now, this is an interesting summary given that Levante's goal was offside and they finished with 11 men despite Navarro elbowing (accidentally on purpose would be my guess) Ronaldo in the first minute.
They did have cause for complaint, Callejon was fouled twice for the penalty, once outside the box then on the line - on the other hand Alonso missed it so it wasn't actually crucial. And during the second half (maybe after the ref saw the TV replays at halftime?) all the 50:50s went Madrid's way.
Conspiracy? Probably just a crap ref, trying to ref a mudwrestling contest.
To add a bit of spice to the night it appears Pepe decided to do a victory dance in the tunnel. Ballasteros (Levante captain) followed him back into the Madrid dressing room, ostensibly to see how Ronaldo was. What happens next will probably be the subject of many retellings but it ends up with Ballasteros grabbing Pepe round the throat and him getting thrown out of the dressing room.
The ref's report also says, a Levante security officer got into a brawl with a Madrid one. The police were called to calm the situation - leaving the Madrid team stuck in their dressing room. The police are due to report today.