If y'all in AZ let people by at home, you forget how to whenever you cross over the border and drive in CA.
Just one example: a few years back I was motorcycle camping in Yosemite, and did a fair bit of riding in the park. I found that I could predict, with near 100% accuracy, when or whether someone would pull over and let faster traffic pass, simply by where the license plate was from. AZ = never. CA = when about 5 vehicles are stacked up behind. NV = when about 3 vehicles are stacked up behind. Mexico = as soon as they could, even if it was only me behind them.
1993 Ducati M900 Monster "Patina" (230,000 miles, so far) -- 1995 Ducati M900 (wife's bike) -- 1972 Honda CB450 (daughter's bike) -- 1979 Vespa P200 (daughter's scoot) -- 1967 Alfa Romeo GT Jr. (1300cc) -- 1964 Vespa GS160 (160cc 2-stroke) -- 1962 Maicoletta scooter (275cc 2-stroke) -- 1960 Heinkel Tourist 103A1 scooter "Elroy" (175cc 4-stroke)