>Friendly reminder you're under no legal obligation to answer any questions at checkpoints
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>Certainly true but also a great way to make sure you get pulled over to the side of the road and subjected to a field sobriety test.

Friendly reminder you're under no legal obligation to perform a field sobriety test (i.e. the 'dance like a monkey', 'recite the alphabet backwards', 'stand on one leg while singing My Country 'Tis of Thee' tests), and should never do so. You are required to take a breathalyzer or give a blood sample and can temporarily lose your license for refusing, but that does not apply to the sit and spin tests.