A) The poor pay a higher tax rate already, that is what taxes are for, to make and keep people poor.
B) Police costs as a percentage of your local government budget are not predominant, and included in the small slice of your local budget is ONLY, as you say, a slightly higher use among the...
You are not required to pay immediately. If you want a pay plan, it can be arranged.
Challenge your ticket, its cheaper, and you will learn something about court. Be bold. You have a few days, so start searching the internet.