That would imply that there were pass numbers in the four digits around everywhere. Even if they restart the count for seniors, toddlers, students, etc., most of the passes would be the full adult ones, meaning you were seeing plenty of passes numbered in the high four digits. At least when I was there, that was rare. In fact if it was over 1000, it was rare. They used to have the "comp" passes start in the 6000's, so that would imply that the adults weren't expected to come close to that. Bottom line, 10000 sounds impossibly high.