This is exactly what happened to my father over the past few years. His emotional responses have increased dramatically, after fifty years of regular behaviour, and he seems unable to adapt to these changes, leading to some very inappropriate actions. For example, he seems unable to separate "I feel extremely angry" from "There is good reason for me to be upset."
Attempts to reason with him don't generate ansognosiac-level absurdities, as he mostly understands that something unusual is going on, but it's still a surreal experience.
I plan to go, and I'm also going from Mountain View. Looks like you're not going, but does anyone else from Mountain View want to carpool?