4th of July DUI Checkpoint - Drug Dogs, Searched without Consent, while Innocent

Police won't let me know if I'm being detained (I broke no laws), they use their K-9 to false alert on my car giving themselves permission to search my stuff, and lie about me having illegal drugs in my car. They eventually let me go with no charges after they discover that I was recording them the entire time.
Here are the numbers from the checkpoint that night:
» 250 vehicles passed through the checkpoint
» 20 vehicles were detained that required further investigation
» Three vehicles were searched
» One misdemeanor arrest was made
» 32 citations were issued: Two child restraint device citations, one DUI, 10 citations for violations of the registration law, four citations for violation of the light law, one revoked/suspended driver's license, six financial responsibility (no insurance), six other driver's license law violations, and two safety belt law violations.

Only one DUI arrest was made. One out of 250. That's less than one percent. It seems to me that these police checkpoints are nothing more than just fund raisers for themselves. http://www.thenewspaper.com/news/10/1... At a DUI stop, the police are only supposed to stop people for a short period of time to see if they are driving impaired. They are NOT supposed to be issuing citations to people.
Another reason why I disagree with checkpoints: In America, you are innocent until proven guilty. At checkpoints, that is pretty much reversed. In the future, I recommend that all motorists record their encounters with law enforcement.