First of all you need to report this to your insurance company ASAP, and then you need to cal a criminal defense attorney to fight the ticket. Given the seriousness of the charges you do not want to do anything in the criminal law area without representation.
DISCLAIMER: David J. McCormick is licensed to practice law in the State of Wisconsin and this answer is being provided for informational purposes only because the laws of your jurisdiction may differ. This answer based on general legal principles and is not intended for the purpose of providing specific legal advice or opinions. Under no circumstances does this answer constitute the establishment of an attorney-client relationship.
I concur with the previous answer. Since it appears that the accident only involved property damage, I would not be too concerned with being sued. As to the careless driving and leaving the scene charges, you should immediately contact a local criminal attorney who deals with traffic cases. The fact that the other driver apparently contacted the police first does not control the outcome of the charges, nor does the fact that the officer gave you the citations. The location of the damage to your vehicle is also not controlling. Sounds like the ultimate determination will be made by the judge in Traffic Court. Contact an attorney ASAP.
Robert E. Heyman, Esq.
Call a lawyer! Going it alone may cost you more than you want to pay.
Actual legal advice can only be provided by an attorney licensed in your jurisdiction, with experience in the area of law regarding your question. The information provided is for informational purposes only and is not legal advice.