California teacher refuses to answer question at checkpoint, detained

they should have just said, i do not answer questions or a suspicion-ary nature at illegal checkpoints "am i being detained or am i free to travel unmolested to my destination" and then if they give you any grief quote International Bill of Human Rights

The International Bill of Human Rights is an informal name given to the Universal Declaration of Human Rights (adopted in 1948), the International Covenant on Civil and Political Rights (1966) with its two Optional Protocols, and the International Covenant on Economic, Social and Cultural Rights (1966).

Article 13 of the Universal Declaration of Human Rights reads:

(1) Everyone has the right to freedom of movement and residence within the borders of each State.

(2) Everyone has the right to leave any country, including his own, and to return to his country.

Article 12 of the International Covenant on Civil and Political Rights incorporates this right into treaty law:

(1) Everyone lawfully within the territory of a State shall, within that territory, have the right to liberty of movement and freedom to choose his residence.

(2) Everyone shall be free to leave any country, including his own.

(3) The above-mentioned rights shall not be subject to any restrictions except those provided by law, are necessary to protect national security, public order (ordre publique), public health or morals or the rights and freedoms of others, and are consistent with the other rights recognized in the present Covenant.

(4) No one shall be arbitrarily deprived of the right to enter his own country.