Unfortunately probably not. G3 events aren’t that uncommon, there’s usually one every couple months. It never hurts to go look for a few minutes though. It’s a pretty rough prediction, it’s not set in stone. The best I’ve seen was a G4 and not the big G5 a few months ago.
I don’t see why not. Hot dogs are generally pre-cooked, you can eat a cold one straight out of the package. The real question is if you made coffee instead of water would you get a coffee flavor caffeinated dog?