Chicagoland DUI roadblocks are a bust-- only 3 arrested during Kane County's "no refusal" weekend

I am glad to report that only three people were arrested for Chicagoland DUI 's the Saturday before St. Patrick's Day in Kane County's roadblocks.  I get the impression they are a bit disappointed with the numbers.

March 27, St. Charles, Il

A drunken-driving crackdown this month in Kane County resulted in fewer arrest than in 2008, and authorities said better planning by holiday revelers may have played a part.

Kane County State's Atty. John Barsanti said the number reflects, in part, a smaller enforcement area. One municipality participated, compared with three last year. 

"It seems that St. Patrick's Day revelers made a conscious and wise decision to not drive if they were drinking alcohol," Barsanti said in a statement. "It was evident that we had lots of activity in the bars, but without impaired drivers getting behind the wheel to get home," said St. Charles Police Chief James Lamkin. 

Perhaps the decreased number of participating municipalities is reflective of what we already know, roadblocks do not prevent DUIs.  What do you think?