Something interesting on the dvd about the ending...

On the menu screen of the dvd for the Chapter Stops and the Set-up features, there is a still photo of the villa in a long shot, the sky looks like it's about dawn, and parked outside the house are two police cars with their flashers on. There's someone standing by the house outside on the left side, and it looks like someone is standing in an upstairs window on the right.

I'm going to hazard a guess that they at least shot a longer ending where someone reported to the police what they saw on the hidden cams and the cops made an appearance on the scene. Kinda weird they used this shot for the dvd, though, when it never appeared in the film.