Answers:
Holy smoke, don't call the cops. We've got enough to do and what you're asking to have done is really outside the norm for municipal law enforcement.
Go here:
http://www.arb.ca.gov/enf/complaints/smoke.htm
And tell the Air Resources Board about it. This page is designed just for what you want to do.
Other Answers:
just contact the local police. you did get a licence plate number right?
The DMV Web site is usually so helpful to me, but I didn't find anything. This is the address if you want to look yourself: http://www.dmv.ca.gov/dmv.htm
Otherwise, the other answerer is right, just talk to the police about it. Great! Just what we need,....pollution nazis!
Hitler had the "brownshirts", they tattletaled on those who didn't follow the nazi ways. Do we now have environazis??
Unless your car is the most "fuel efficient" car in the world you are no better.
By the way environazi, why are you driving and spewing fossil fuel laden pollutants into the air? Shouldn't you be at home hiding? You know, that place where you live where they used polluting heavy equipment to rape and level your land, just to build your house????
My question: If all the world's "environists" all committed mass suicide, how much ozone would we save from the enormous reduction in "hot air"???