It was wise to obtain insurance through the rental car company since you did not have personal auto insurance. To understand what coverages you purchased here are general, brief descriptions. A Damage Waiver is for the repair of the rental car's physical damage and daily "loss of use" charges while the vehicle is being repaired. Personal Accident Insurance insures you and passengers with regards to accidental death or bodily injury. Supplemental Liability Insurance protects you against bodily injury and property damage claims made by others in a "covered" accident with the rental car.

Your question makes it unclear about what you want the rental car insurance to pay on. If you had an accident with the rental car before being arrested you need to check with the rental car company to find out the specifics of what you purchased and if they will pay on your behalf. It could be possible in the forms you signed that there was a clause against negligence or dui/dwi. If you are asking about the insurance helping to pay for DUI related fines, etc you will find those to be your personal responsibility.