There's also a sign on this half of the traffic wire that looks like it might be saying "yes turns" (low resolution, but I can't imagine what the sign says with an arrow pointing right other then that)
That sign says "One Way". Not "yes turns"... I don't think I've ever seen a sign saying that, actually, it's either "No Turns" or no sign at all, since by default turns are allowed.
I've definitely seen signs that say "you can turn here" and "you must turn here", admittedly not with language but with arrows (the "you can turn here" signs around here looking like a forwards arrow with a curved arrow bending off). They're not in general use, only for weird situations (like "two turning lanes" or "yes really this really strange intersection does work like this").
Ahhhhh I see the no right turn sign on the pillar. That is confusing as there are also one-way signs (with arrows pointing to the right) further along.
Moral of the story, do you think most humans would do a better job at this intersection than the Tesla did?
That sign in the pillar, if I was driving, I would assume applied to the other lane on the left side of the pillar. I think the intent is to make sure you don't turn left if you are in the right lane of the pillar side, and vice versa.