Hi everyone, really appreciate it if someone could provide a bit of advice or help.

So I was in a minor car accident a couple days ago, the other driver and I have both made a report at the police station. After the report, the police referred me to another guy in front of the KL traffic police station to get pics of my car taken and the guy offered to help me handle the repair and whatnot. Being confused and all, I let him take the report document needed to proceed with the next step of the procedure (the paper with the checklist of things I need to do). Following day I texted the same guy and told him I appreciate his help but will do the repair and all myself and asked to get the document back. The guy replied with a voice message (sounding kinda drunk?) telling me I'll have to go get it back from Perak, and being just really rude.

Question: Should I just tell the police that I'd lost the paper or try to get it back from the rude guy? Any other suggestions are much appreciated. Thanks