The American Civil Liberties Union's Washington website has a five-question quiz about citizen's rights concerning interactions with Border Patrol agents. .
U.S. Custom and Border Protection agents, which are the CBP personel in Friday Harbor, are not Border Patrol officers. They are also not Immigration Control Enforcement (ICE) agents.
Border Patrol officers work outside the ports of entry. Border Protection officers work inside the ports of entry.
In addition to the quiz, there is more information including links to recent court cases posted on the ACLU's website.