Would you stop a man driving a vehicle 40 mph....backwards?

It was around 2 am in the morning and everything was quite. no police calls waiting. i decided to have some doughnuts and coffee. thats right. got it to go. backed into a closed gas station. within 2 minutes, here comes this car going backwards down a main highway in front of me. one occupant, the driver. no other traffic on the road. here is my tough decision: do i go after this vehicle and check the driver out or do i have a “blind eye” and continue with my doughnuts and coffee?