Yes. It is reasonable to check my car to see if I'm smuggling things, but shouldn't I be allowed to supervise? How do I know they won't just steal something, like the car. (I checked and AFAIK they didn't). I'm looking into suing them for violating my rights, but you know after 9/11 they can get away with anything. In addition, I'm looking into suing them for my cup holder. It'll probably end up being more work than it's worth, or I'll forget about it and never leave the country by car again.