Yep, sure, you're all cop haters, for now. Until someone you know and love gets killed by a drunk driver who walks away from the wreck with nary a scratch. You'll sing a different tune then, I bet.
Stats are that at any particular time, one in ten drivers are drunk/over the limit. That stat increases incredibly every Friday and Saturday night. Police officers I know are trying to stop the carnage, not increase revenue, which around here anyway doesn't go to the department that makes the arrest. The department WILL eat any overtime required for processing, etc., however. And don't believe any cop wants to spend the wee hours of Sunday AM dealing with an idiot instead of going home at his regularly scheduled time to be with his family.
To make a legal stop, the officer has to have probable cause. It can be a light out, driving erratically/over the line (warnergt, where'd you get your info? In NH, that doesn't fly), anything other than "normal" operation. And if you've done nothing wrong, you'll soon be on your way. Be glad someone is looking out for you and trying to make sure the REAL drunks get caught before they kill someone. Whether you like it or not, driving is a privilege granted by the state. Sure, there are over-zealous cops, and they make mistakes, and they can lose their jobs in short order if they keep making mistakes. Losing an otherwise good DUI case on a stupid technicality is no good for anyone except the drunk, and doesn't solve any of the problems. Departments can't afford, in every sense of the word, the liability of bad cops.
I can't count the number of times I've seen cars veer into my lane and swerve back out; I'm sure the operator was trashed. And if you all have been out there when you say you have, you've seen the aftermath of *those* crashes - the ambulances and the sheet-draped figures along the road. You want to drink and drive? Please stay off the road *I'm* on.
Rant over.