Here is the current state of affairs in SF.
Parking ticket = $50 (minimum fine, sfgate story)
“Raising parking fines will lead to more abuse on the streets,” said Luis Estrella, a San Francisco parking-control officer for the past eight years who said he was punched last year by a firefighter who got a $50 ticket.
Downtown meter violations, for example, will be fined up to $60, and parking in a street-cleaning zone will set drivers back $50. The city now makes about $90 million a year from parking fines. The increase would bring in an estimated $13 million more in the new fiscal year.