memes

Assuming you're talking about the handheld roadside units and not the calibrated stationary units, those 'slight inaccuracies' can be the difference between being let go or giving the cop any evidence to claim you're intoxicated and hauling you into the station for processing. And again, the cop is only looking for excused to list as grounds for further suspicion and justification for hauling you in. Don't do their jobs for them by voluntarily participating in any investigation that isn't required by law.

If you're referring to my comment about potentially refusing the breathalyzer at the station knowing it likely constitutes an admission of guilt; that can be the difference between being just over the limit or facing an Aggravated DUI charge for having a recklessly high BAC and finding out there are some distinct increases in penalties between the two. Realistically, someone with a BAC that puts them into Aggravated DUI territory isn't likely to be thinking clearly enough to make that decision, but still with mentioning.

Obviously, no one should drink and drive in the first place, but if someone finds themselves in such a situation and is arrested it's likely better to know the difference in consequences, legally.