In most states, refusing a breathalyzer test can cause suspension of your license, even if you are completely sober: https://dui.findlaw.com/dui-arrests/can-i-

In most states, refusing a breathalyzer test can cause suspension of your license, even if you are completely sober: https://dui.findlaw.com/dui-arrests/can-i-refuse-a-breathalyzer-test-.html https://dui.findlaw.com/dui-arrests/can-i-refuse-a-breathaly... Sadly, as with many things in our criminal justice system, the answer ends up being "hope that you're not prosecuted by mistake, and that you have enough money for a lawyer if you are".