His insurance is probably about to turn into another car payment, but I’m not sure how helpful a lawyer will be - he may want to save the money.

35 generally means houses. Pushing 70 in a residential area is something that deserves punishment. No way you’re going to be able to stop if a dog (or kid) runs out into the road.

Does he have a dash cam, or any way he can contest the speed? A lawyer is only going to be useful if there’s something to argue.