**

I definitely dont know, but Ill take stab at it.

I think, like you said, patrol car was probably common.

sqaud car.

Since Zodiac used the phrase “blue meanies” well, ….. I ll just copy and paste from the wiki…..

 

According to WiKi, 

Blue Meanies: 1960s and 1970s hippie slang for the police in Britain, referring to the blue uniforms.

That being said, what police in the Bay area even had blue? Im sure there were some. But Im picturing alot of khaki for some reason.

 

 

Candy Cars: Slang term for police cars in the UK as the is livery yellow and blue. (Ambulances are yellow and green, fire service yellow and red, and transport (motorway) yellow and black. Except for the black, all are reflective. The backs of all vehicles are red/yellow inverted chevrons—only red/yellow because the other colors are not legal on the back.

 

 

CHiPS was used for the California State Highway Patrol.

 

Paddy wagon: A police van. So named in Liverpool, UK as most of the policemen and prisoners were of Irish extraction.

 

Panda Car: UK, a police car. Named because they were originally painted with large panels of black and white, or blue (usually light blue) and white. First started by the Lancashire Constabulary in the 1960s. Original Panda cars were the same model of car bought by two adjacent forces – the one in black and the other in white. The doors were then swapped between vehicles giving all the two-tone colour scheme one way round or the other. Bonnets (hoods) could also be swapped. Not clear if boot (trunk) lids were swapped. Not all fitted with a blue beacon. Some fitted with a large box shaped roof sign “police” with the blue beacon on top (or not). Many were Morris 1000, Austin Morris Minis or 1100s. Ford Anglias and later Escorts also used by some forces. Colour scheme later changed to blue (usually light blue) with white doors – or, again, the reverse – light blue with white doors.

 

I relize these are from the UK, but seeing as how Zodiac used “Blue Meanies” and is sometimes described as welsh, them maybe this guy could have been a bit European. Maybe thats why he sounded a bit off. He was covering up an accent. Totally possible for someone across the pond to cover it up, Andrew Lincoln in the Walking Dead does it great.

 

Blue Meanies is from the Yellow Submarine and I think was a direct jab at his own background in the navy to make up for him getting seen with Stine. His power comes from his knowledge that people will be ignorant of him as a Zodiac candidate because of his job and so he gets off on puzzles to his identity and beating society who has crossed him. 

You found quite a few colloquialisms and I look forward to seeing what emerges out North California for 1969 on this question.