Did they say that they were CK? They also have Premium Services at some airports (may be the same folks, not sure). We've been met several times at LAX by Premium Services after arriving on international flights and having long layovers. They've offered to drive us to the FL. Of course, we declined as walking is far better than riding, but the offer was nice.
Cheers.
Yeah, she introduced herself as CK and had a black nametag on with it...was a nice touch, made me feel important (until I got home and wife put me back in my place).