Buuut, occasionally something comes along and I say "this is too cool not to post". As I would expect from anyone re-posting my materials, I dont claim to own this, and am posting it from the direct original link on youtube so that they get the views for it.
So, here is a video from youtube that a user posted.
It is Jared & Jensen in the Impala, and they stop near some fans. Jared chats with them, and Jensen waves at them as they leave. Pretty cool piece of fan interaction.