I'm betting there was an issue with the horn and its since been fixed.
You lose the bet!
I just came back from Euro-Cycles here in Reno. The same SR/F is now on the showroom floor, so at first, I assumed it was fixed. But that's not the case at all. It still has the exact same problem. The bike was simply moved from the shop area to the store front. The horn still blows continuously a few seconds after the key is first turned on but if turned on for a 2nd time within a few seconds, then no horn at all, not even when the horn button is pressed. And both of these things were checked by me TODAY (around two hours ago) in the shop, with TW (A sales guy who I know there).
And here is the big news about that shop:
Every mechanic (and I mean every one of them) QUIT at or very near the same time!!! They now have NO mechanics at all, their service department is closed. And I don't mean because it's Saturday, it's closed every day until they find new mechanics. So now they have nobody there to work on Zeros or any other brand. I was told this by TW today, but I also heard it a few days ago from a buddy and today, I confirmed it's true.
I have no idea why they all quit at the same time. I don't think I can get an honest answer for why this happened, and so I can only guess. But I did ask and they said it was all for "personal reasons" whatever that could mean. I didn't push it from there.
A real bummer!!! I would like this (rather large) shop to survive. But for now, they cannot service anything at all.
Looks like it will be a while before I get my Zero firmware updates done here in Reno.
-Don- Reno, NV