Good to know regarding CCPA. What I had read all mentioned either an in person request with the vendor, phone call to the vendor, email to vendor, or a web form via the vendors website. There wasn't any mention about a skeet/tweet/other social media post.
Comments
“Individuals can make subject access requests on any social media site where an organisation has a presence.”
So, have fun with actively pissing off a lawyer on this one.