Even in the case of CNN -- no bueno.
To see some Spanish on CNN, I had to choose to go to 'CNN International' first, then choose the 'Espanol' value from their own langauge dropdown menu.
I thought Coke, Pepsi, MS, etc. would go Spanish from the jump, but it doesn't seem so in my rudimentary testing.
Incognito windows. I'm in Phoenix.
Hotels.com did seem to offer Spanish out of the box -- they are the exception.
I know (?) many/most Spanish speakers in America can read at least a bit of English, but...do they/you have to do any special configuration to read in Spanish, or does Google eventually determine they/you prefer Spanish, or maybe they/you just ride English..??