I would recommend to find not just any lawyer. Post on local message boards, etc, but you have to find a local to the area lawyer who successfully handled cases like this in the past. They know their way through the system and can make things happen. This may cost a couple of grand give or take, but if you want to keep the license, that's the way to go. On your own, you are screwed 100%, and after you add all fines, fees, your future insurance, messed up driving record, etc. it will be way more than the lawyer cost.
I am in NY, so that's a different state. It also happened in one of the worst places - Queens county (no bargaining). I got 121/50 plus following too closely, lawyer kept delaying the trial for almost a year, finally he went for a trial with the judge he liked, told me to not even come to the trial (he felt he was better do all the talking). The outcome, I got 15 points on my license which expire this month (because the DMV keeps them on record for 18 months since the date of violation), however I do keep the license, around $300 fine, stupid NY driver responsibility surcharge ($300/year for 3 years). Lawyer cost - $2500, but it is a very good one. Just got my MC insurance renewal in the mail - the lowest tier in terms of pricing: $530/year, full coverage. They probably didn't check the DMV records. I was expecting much higher rates. Well, you get the idea.
Those who say don't ride that fast, you've got to be kidding me. Right place and time is the key. I don't have to tell you that 120 ain't that fast.
In retrospect, you know the saying, good deeds are punishable or something along those lines. There was an opening in traffic where I intended to open her up a little, but a couple of cages were blocking me. I didn't want to split in between them knowing this would scare them and was following "too closely" for half a minute. When I could pass and got into a very light traffic (half a mile ahead and only 2 - 3 cars visible), I opened her up, and as I closed up on traffic, I slowed down to a normal highway speed. Well, the unmarked dodge charger which was following me, pulled me over. If I were to split lanes and did my thing, the cop would've been stuck behind those same two cars, and would've never cought up to me. You can guess I am not as considerate of cages' feelings any longer. I either go with the flow like every other vehicle, or flip the switch and go.
I don't believe any Busa rider, dressed in full leathers, on a divided highway, with excellent weather conditions, excellent visibility, very light traffic and no cops would be limiting themselves to a measly double speed limit. And if you do, shame on you. LOL
Sorry for the long post.