Ok, I meant to write a whole bunch o' stuff before this. However, I just got sent this link to BUSTED: The Citizen's Guide to Surviving Police Encounters and everyone should see it. I've had enough nieces, nephews, and students get arrested over traffic stops, and they all gave consent to searches. This is a long (46 minute) video, but you should see it for your own use AND pass the link along to everyone you know.