Hey, That's a really good question. But I'm not sure if there are any specific fines for eating pork in public.
One has to be tested for being drunk to be fined for it. (Apart from the obvious i.e. behavior and smell)

However it's not easy to know if a person is eating pork, so I'm not sure of the ways that authorities could use to identify the meat as being pork.

Obviously being drunk in public could result in harming others(hence considered worst) when compared to eating pork in public.

A fun fact- Both Alcohol and pork can cause Cirrhosis!!