Even though this will elicit a response from them I don't think they will fire an overly large barrage. 5-10 at a time every hour for a few hours will probably get the response they're looking for. This wasn't a Hezbollah member, but they need to save face after drawing the line in the sand - so they'll launch something "easy" but serious enough to make it look like they're doing something.
If they drop a residential building in Tel Aviv it would run the risk of an immediate and extreme escalation.
So you don't think there's any possible peaceful solution? Only the violent destruction of Israel?