So what is a 20mph over going to run me? $$

Speeding fines are only like the 20$ a mph over thing if u plead guilty, then the money goes to the state, but if you plead not guilty and they work it down to parking tickets (99% of the time) the town/city/watever gets the money. Thats why almost all traffic tickets are reduced to parking, you can thank the system and greedy people for once.