warning ticket

i got a warning ticket for parking at an expired meter in downtown. this is the first time it happens, i was hoping it's a change in the way the city handles parking violations, but then i got 2 more parking tickets the days to follow, both issued by the same officer, the sequence number shows 23 tickets difference between the first and the second one in less than 24 hrs. so for an officer giving roughly 25 tickets/day each at an average of $40, the officer collects for the city a $1000/day.