I think they only got the front page. Maybe one more. But the full complement of supporting files-- with humanoid timing-- is a non-robotic touch. And of course it wasn't preceded by a human request for the same page, or I wouldn't even ask. (I mean things like BlueCoat, where the AV steps in and requests a page after the human browser has already asked for it.)
Sometimes I get people opening pages in tabs, so there's a flurry of requests, a few seconds apart. But they'll all have the same referer, so you can see what they're doing.