I think there's a crucial difference here. If we want to prohibit an activity, having a fine that's the same in dollars is not great because of the whole incon

I think there's a crucial difference here. If we want to prohibit an activity, having a fine that's the same in dollars is not great because of the whole inconvenience-fee thing. If the purpose of the fine is punishment and deterrence it is ineffective. If we want to have less of an activity but reach a quantity where there's a equilibrium between the social costs and social benefits for the activity, then that's really a tax. And it should be uniform and not vary based on income. Which is tailgating?