Annual service before or after insurance authorized repair?

[Nagi J]

My Tesla Model 3 was recently rear ended. The damage appears cosmetic from estimator's assessment, and the rear bumper and assembly needs to be replaced. We are still waiting for parts to arrive to do the repair - repairs being done an authorized repair shop (body repair, so Tesla service wont do this). I am also due for my second year maintenance at Tesla service center. I am debating whether I should do the service (where Tesla service will also do full checks) prior to doing the body repairs OR after doing the body repairs. Anybody with similar experience (or not) please offer your perspectives. Thanks in advance.