I’ve been told by non-Californians that I do have a bit of a “Californian accent”. Apparently I speak with some increasing fronting of the /u/ sound, so that I pronounce the word “food” more like “feud” without the palatalization. I suppose that fits the stereotype of California surfers saying “dyewd” for “dude” in exaggerated examples. I pronounce /s/ with a relatively high-frequency, though not the point of having a “gay lisp”, but there is a slight effeminate tinge to my voice that shows up in certain situations. I hardly notice it, but listening to recordings and the opinions of my friends, it’s there.
I definitely pronounce “marry” and “merry” the same, “caught” and “cot” the same, and of course I use “hella” quite frequently. :) That said, I don’t say “what the hal?”. “betch”, or “shetbag”. ;)