wow, I'm not expert at all but my son got one of those tickets. I think very close to the same speed. 70-something in a 55. They threw in a reckless driving charge due to the speed.
Anyway, he went to court on the date given hoping to just pay a fine and have the points on his record and suffer the increased insurance cost and just live with the consequences. He was even prepared to lose his licence for a period of time as was entirely possible. The DA said on that first court appearance he needed time to think about what he thought he should do. He even indicated that he didn't think the normal options would do. They did a continuance for about a month or two later. So we too thought we better get a lawyer, it seemed like they were thinking of throwing the book at him. Or at least that's what we were dreading. We spoke to a lawyer and he surprisingly told us that he thought it was a scare tactic because he is young and had no prior tickets. He suggested we go without a lawyer and ask for probation and driving school. He told us they would probably drop the reckless driving and just stick him with speeding. So we took his advice. The next court appearance, DA suggested to the judge, community service. So he had X hours of community service (he volunteered at the animal shelter on weekends). I don't recall now how many hours it was but it wasn't that bad. The DA dropped both charges and there was no fine if he agreed and went back at an allotted date to show that he did the community service. I think he had 90 days to complete it. He ended up with no tickets or any "points" on his licence. No record it ever occurred and no fines.