you should ask the police department get the informaton

for you. it need to be part of the report.
all driver need to have insurance.
You may need to go to the police department in person and request that.
At least they should send out a request form to ask the driver to provide the related information.
Lawyer won't help much since it happened in a parking lot and no one get hurt, the money you get will be very little and you need to spend a lot of time dealing with it before you get the check. not worth it at all.