You are better to not answer than say no. If a breathalyzer proves you had been drinking, the judge will not be happy if you lied to the cop.
You are getting a DWI/DUI anyways. You are better to say “no” or not answer at all
Saying yes just guarantees you the DUI/DWI
As I said, it is better to say nothing than to lie to the cop. You have a right to remain silent. And, of course, you never admit to having been drinking. (I am a lawyer.)