There are different theories of punishment. The main two are:
(1) Punishment-as-revenge (eye for an eye) for acting wrongly, and as a means of fairness as viewed by society (example: if a rapist was released without jail time we would all think that it’s pretty unfair that this victim was raped but this d-bag gets off without any suffering)
(2) Detering future law breaking
You seem to fall into (1). Maybe you think that this guy broke the law therefore he should have to pay for neglecting the safety of himself and others on the road. And that’s fine.
I see it differently. I think this guy has probably learnt from this, and we have all learnt from this, and giving him a ticket doesn’t add anything to the pot.