Should their be federal limits on the money police can get from traffic tickets?

In my small city- it seems like they are enriching themselves off minor traffic tickets. I've paid $600 so far this year alone and I'm not a purposefully reckless driver.

I wonder if that's how they can afford their higher salaries (than the median where I live) and 2015 ford police cruisers (whereas most people here drive old cars).

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