Assessment of damage

Hello… met me today with an A4 on the federal road “since the driver had his car about leasing at the beginning of 20 was also the police there with the words “what should we do now the insurances” drove again… with him only the mirror is defective… With me it unfortunately also got the door and the window… How is it now going on? Both insurances pay first and then? Do I have to pay for his and he for my damage or everyone for his own? My car is fully covered at the moment SF10… I’m probably going back to SF4 if I have read the terms and conditions correctly… (additional price ~200€ year) Or should I pay for the damage myself? With some photos… Blue = my A3 Black: his A4 I have heatable mirrors… and on the engine for the glass adjustment is also what is broken you don’t see on the pictures…