Yes, Rob and Laura did live in New Rochelle. Rob's hometown was Danville, Illinois, (Dick Van Dyck's actual home town)

Old sayings:

I'll swan.
Laudy mercy.
Missed it by a country mile.
You were standing behind the barn door when the brains were passed out.
Turtle (meaning a car's truck) from my poor old step father from Arkansas.

Fine as frogs hair

I'll get after you like thunder after lightnin.

Bleedin' like a stuck hog

One lie brings the next one with it

Oil don’t wear out, just gits dirty.

They have a carburetor that gits 100 miles to a gallon, but the big oil companies bought it.

You could hear the chevy's rust"

Ford
Found on the road dead

"It's a doozy"

If you'd like to surprise her, get her a Kaiser.
If you'd like to amaze her, get her a Frazer.
Or... Just get her a Tucker.

"Red at Night, Sailor's Delight

"Red in the Morning, Sailors Take Warning"

It's just down the road apiece.

Oh yes my grandmother always said that