So that's kind of odd to see
EDIT -
3 camo painted Tumblers unless they all represent a single one and they just have 3 which can do different things depending on what the shot calls for. We've seen the painted black one on a flat bed, so we know Batman has his car again, but that could be for later in the film and this scene takes place earlier on.
EDIT -
Well, now that I see one of them has a different roof design, that theory is shot. WTF are they doing?