I am still not seeing how am I paying for parking. In my city the lot size and the impervious coverage (you cannot build to cover more than 40% of the land) is

I am still not seeing how am I paying for parking. In my city the lot size and the impervious coverage (you cannot build to cover more than 40% of the land) is caused by preventing flooding, if people built more houses and covered more land it would cause more flooding and has nothing to do with the cars.