Utilities are not emergency services at all. Adding them feels like stretching the game towards being a city builder.
If they were to be added, they would have to create new buildings for them, not extensions. They wouldn't make sense as extensions onto any current buildings. I'm not completely opposed to the idea of adding utilities, but it's definitely not at the top of my list of wants either.
Also, the increase in cost for fire and police departments won't be removed, by time those start increasing for you, you should be making enough credits that it doesn't effect you too much.
And your last reply to ChiefBoden only hurts your request. When you propose ideas, you have to be willing to take both positive and negative feedback. Choosing to attack anyone giving you a different viewpoint only makes more people disagree with you.