Well, that would explain it....

Sometimes a principal on a film introduces himself to you in the van taking you to set, and because he's looking over the call sheet and the transpo sheet and is sitting in the front seat of the van and says you're picking up 6 more people, you assume he's a PA, and you ask him questions as such, and you wonder why he's so unknowledgeable about what's going on, until the van drops him off at his trailer half an hour later. Yep. Sometimes that happens.