Pointless fighting it unless you got alot of $$ and time in court coz the law state 'In the opinion of the officer' or some shit like that which means even if the pig doesn’t know shit they can defect you if 'in their opinion' they think its unroadworthy. Its just another way the laws have been written so that revenue can be made off innocent people.
Also cops will just keep telling you to do things until to tell them to *** off, like telling you to rev ur car to 7000rpm. You don’t have to start ur car or rev it once they pull you over. Only time you need to that anything like that is at an emission centre and by the presence of an approved epa/adr tester, which a dumb donuts snorting cop is no where near being.
People need to read up on what rights they have otherwise the cops will just walk all over you when they pull you over.