Be careful. Depending on where you live, refusing the breathalyzer or roadside test results in a mandatory 1 year license suspension regardless of what comes up in the test at the police station. Arizona here.
Interesting! Can you at least opt to go straight for the breathalyzer?
If you've not been drinking, it seems a bit of a waste of time to have to stand on one leg (etc.), when you could just use the breathalyzer and have the question answered straight away.
It's dependent on the officer. In Ohio, you can be charged with a DUI automatically if you refuse the breathalyzer. I'm not certain if this extends to the roadside test. My original comment was more that you might be able to refuse the roadside test, get arrested, and then agree to take the breathalyzer at the police station so you'd have stronger evidence.
The roadside tests are only accurate to a certain degree, whereas a properly calibrated breathalyzer provides much stronger evidence.
If you've not been drinking, it seems a bit of a waste of time to have to stand on one leg (etc.), when you could just use the breathalyzer and have the question answered straight away.