You should discuss this with your attorney, or get one if you are not represented. I would object and if necessary seek a protective order. You most certainly have NO right and COULD BE FIRED for providing access to your employer's system. Discovery is broad and the opposition can ask for almost everything, however but neither the Courts nor the Law are stupid.
That is a felony and you need representation now. Don not speak with the police or prosecutors (or anyone else) until you have counsel. Most attorney's, including my offices, will make secured payment agreements if necessary.
He should engage a attorney now and speak with one one until he has been counseled. He will be contacted, and if he was in an accident and drinking they are going to be very difficult to deal with. The third time is a felony.
Tim is correct, that place to go is to your insurance company and make a claim. If the other driver was insured your recovery will be limited to $1000 to pay your deductible. See a Doctor about your pains or headache. Sign no releases with review by an attorney. If there are no injuries you are basically going to receive the loss resulting from the damage or destruction of your car, and that is it, and that will be from your insurance company..
He will most probably not be released from probation without clearing his fines and completing his community service. More likely he will be violated.
He has a very low probability of regaining a license, especially if he does not go to AA or a similar program and is able to prove no drinking for at least two years, and given his record, probably more.
As he is not even complying with the courts present orders, I do not believe the future is at all bright. Indeed it would appear the storm...
Ask him for the information, but I seriously doubt that you have a case given that he was present and at least impliedly allowing the THREE TEAR OLD on the trampoline. Sounds like dad should be allocated the costs of this incident.