Visible crew/equipment: In the scene after Walter took his son from the school and parks his car in front of their house (before the pizza scene), you can see the camera mounted on a crane while filming the scene reflected on the car's windscreen.
Visible crew/equipment: The camera equipment is visible in the bumper of the jeep in the scene where Walt drops Jr. off (before the pizza scene).
Green Light - S3-E4
Visible crew/equipment: When Hank pulls up on the side of the road to answer his phone, the camera crew are reflected in the Jeep's grill. (00:31:00)
Green Light - S3-E4
Visible crew/equipment: Skyler is making copies and the scene starts with a shot looking down into the copier (the Green Light). When the shot lightens a bit as the copier continues, you can see the camera lens. This makes sense because the camera is sitting directly on the copier looking down.
Visible crew/equipment: During the shot from the interior of the car of Hank following Jesse, a camera man in a green T-shirt can be seen crouching down on the road to the right of the screen. (00:30:40)
Kafkaesque - S3-E9
Visible crew/equipment: When Gomez is showing Hank the map of all the blue meth, the blue helium balloon behind Skyler shows the stage lights. (00:06:40)
Chosen answer: It is part of the ritual for la Santa Muerte. It is a sign of humility and sacrifice.
djm