Find the video of the cops’ body cam going down the hall. It’s eye opening. Now way that mat would be missed. Even a blind man wouldn’t miss it because he’d have to stand on it and realize it wasn’t his door.
Here’s that video: https://www.youtube.com/watch?v=hiYMwP5hgDU
Just watched it now. You’re right, bgill, that the red mat stands out.
Maybe she was too busy looking at her cell phone and thinking about her married lover.