Visible crew/equipment: When Max enters Barter town for the first time, right before the shot where he hands over his weapons at the entrance, a microphone from filming can be seen in the upper left corner of the screen, rather obvious to spot although the background is dark.
Visible crew/equipment: In the opening sequence after Max is robbed of his vehicle, he walks up to a pair of boots that has a Bosun's whistle in the strap. As the camera looks at it, the cameraman and equipment can be seen beside Max in the reflection as he reaches down.
Chosen answer: Actually grooming would be somewhat important, if only for general comfort. Unruly facial hair can be quite uncomfortable and gets dirty easily. It is entirely plausible that men would regularly shave if they had a means to even in a post-apocalyptic wasteland.
BaconIsMyBFF