Well...got a speeding ticket for 15 over, advice?

You can give an attorney $150 to do this or you can do it yourself.

First, the police or the lady at the window can NOT reduce a ticket or reduce the fine. That is illegal. ONLY... ONLY the DA in that jurisdiction (or a judge but he usually wont deal with this as that's what the DAs office is for) can reduce a ticket or a fine. Period.

All you have to do is call the DA's office & speak to the assistant DA that will be handling your case. Just ask him if he can help you out. Over my 30 some-odd years, I have gotten a few speeding tickets. I have never.... NEVER, been declined help. Every assistant DA that I have ever asked for help did so. They usually reduce the ticket to a non-movable (just ask for that) which doesn't go on your record, pay the fine & no one will ever know the difference.
Usually, they will have some sort of stipulation attached to this that you do not get another violation in their district for 1 year etc etc. If so, this ticket will be reinstated at the 15 over. Different districts have different stipulations.

This is not hard to do. It does take a few weeks to get through the system so:
1) call the DAs office asap & find out when they expect to receive the ticket.
2) on that date, call the assistant DA back & talk to him about the ticket & tell him you need some help because:
A) you have a clean record (he will run your DMV record to see) & that you are not a maniac driving our on the road.
B) this is a very serious offence & will be a serious violation on your class A licence
C) you will pay the total fine for a reduced ticket/violation NON-MOVING (that is essential)

It will take him a few days usually to get back to you because he will:
1) check your DMV record
2) he will talk to the officer who wrote you the ticket to see if his story matches yours &
3) if you were respectful to the officer etc
4) he will ask the officer if he is willing to let him work with you. If the officer had an issue while dealing with you, he may ask the ADA not to reduce the ticket. Chances are the ADA is going to respect that officers request. If the office doesn't have an problem with the ADA working with you, chances are, you have a deal.
5) If you have had any previous issues in that district, like asked for help on a previous ticket etc

The bottom line is, the ADA will usually help you if he can.

Do what you want, but this way its free & its not hard to do... Just call, be sincere, polite, respectful & honest. An attorney aint gonna get you out of this any cheaper.