I understand he never flew either - always took AmTrak when he was on a speaking tour. Ironic for a SciFi writer. Make that (for me) the BEST SciFi writer (my son would disagree although he is a HUGE Bradbury fan - I read him Bradbury’s short stories before bedtime).
An absolute treasure.
Perhaps he knew he wasn't loved by the collectivists for his work, especially Fahrenheit 451. They couldn't knock him out of the sky, so now they're erasing his house.
With plausible deniability, of course.