Yeah, see I'd call them a band who at various points play ska, punk, cheesey funk, reggae, dub and straight up rock. Sometimes all mashed up together. Not purely a ska band. I mean, look at the first album, there's only one ska-ish track on there, Police and Thieves.
Also!
This is my Track Of The Week, which also happens to be a ska track:
Push Wood- Jackie Opel.