Call animal control right now and make a formal complaint. Never mind Grey and Zeus--these dogs are snapping at KIDS.
It's one thing for a dog to be loose in the neighborhood if it's friendly and sociable, stays out of the street and minds pretty much everyone. Heck, my Nicki was a neighborhood dog who wandered all day long, waiting for us to get out of school! It's still not uncommon at all around there for dogs to be wanderers. There's one particular retriever mix that lives by Gran who gets out almost every day, and goes around visiting and shaking hands with everyone she meets and begging for tummy rubs. I think her name's Mud--she's a sweetie. Everyone knows she's supposed to be in her yard, but if she were, they wouldn't get to play with her and love on her, yada, yada....to be honest, if I lived at Gran's, I wouldn't complain about her either. A lot of people are like me--glad to share someone else's sweet puppy!
But you have to draw a hard, hard line when dogs are snapping at people, especially kids who are just playing on their bikes. This is how those horrible killer dog stories get started, and all that stupid BSL. Don't worry about neighborhood politics--just think of how you'd feel if instead of telling you the dogs were snapping, Myranda came home and told you someone had gotten badly bitten--or worse, come home bleeding herself!
You'll probably have to keep calling repeatedly for a while before anything definitive happens, but you can't just let snapping dogs run.
