Incorrect. Field sobriety test like walking a straight line or doing those bizarre tests can be difficult for those who haven't been drinking. Now if he refused a breathalyzer or blood sample and he was sober, that's the wrong move. If he refused a breathalyzer or blood sample AND he was NOT sober, that's the correct move. It's far cheaper to take the one year license suspension than get a DUI and deal with all of those issues. This has nothing to do with the officer, but protecting yourself.