Could I be wrong? Taxi evidence may mean new Arizona DUI law's work

I may be wrong. Those who know me know that I have consistently maintained that the tough new Arizona DUI laws would pose absolutely no deterrent value to would-be impaired drivers. If this Fox news report is correct and the increase in taxi cab business since the enactment of AZ's new tought DUI laws is a direct result of the new laws, then maybe I stand corrected.  I will wait to see the hard data.

Quoted from http://www.myfoxphoenix.com/myfox/pages/News/Detail?contentId=5464409&version=3&locale=EN-US&layoutCode=VSTY&pageId=3.2.1:

MyFox Phoenix | Strict DUI Laws Increasing Business for Taxi Companies

Taxi companies say they have seen an 25-30 percent increase in business since the new laws were enacted.