Driving high is irresponsible no mater how much you smoke. If it didn't affect your state of mind, you wouldn't smoke it.
I don't want some high school sophomore getting in the car after ripping a few bong hits, even if he swears hes fine. The same thing drunk people swear when someone tries to stop them from driving.
And Maricopa county = Joe Arpaio = people who watch fox news = anti-science = fill in the blank.
smoking one or two hits is NOT the marijuana equivalent of drinking to the point of legal inebriation. merely saying that shows some seriously faulty thinking processes or utter ignorance of how cannabis affects most (if not all) people. even the police officers that I know say this...