Yeah, I knew a guy who did a 5k run every morning after binge drinking. He seemed to maintain his body composition, but it still begs the question of how much more impressive he may have looked if...
Yeah, this would hinder your progress... by 2400 kcals a week's worth. Imagine you didn't do this so often. Perhaps limit yourself to just 1 time a week. That's 1200 kcals a week of carbohydrates...
I recommend going for a couple of hour long walks throughout the week to make up for it. These walks would be in addition to your regular workouts, and I agree you shouldn't over restrict yourself...
I guess there's a misconception out there that all carbonated drinks are bad for you, this is not true. Carbonated water is literally water with bubbles from carbon dioxide which is just air...