Sorry to hear about that. Not to be a downer, but to be a realist as someone that has been rear-ended 3 times in 3 years:
If a police report exists, it will be on the carfax. If it's on the carfax, it's a vehicle with a damage history. Future buyers will wonder. Many will walk away because there will be other cars that don't have a damage history. Your car will sell for less in the future. I just sold a car with two "accidents" on the Carfax and it sold for $5K less than a car with no accidents (on a $25K car). Didn't matter what the accidents were.
The appropriate thing here is to ask Tesla for "diminished value." This is a pain. They will argue with you over how much this is. Make them take pictures of the car before ANY repairs. Keep all documents showing what they repaired so you can give the pics and documents to future buyers so they can see that it was minor. But with all that, they'll pay less than a pristine car. For a simple bumper cover replacement, I'd say $1,500 less would be fair, so Tesla should pay something like that.
Chances are 95% that they won't pay, and you'll have to decide if it's worth it to go to small claims court.
It sucks, but that's the reality. The easier path is to just suck it up as part of life, make sure they repair it well, and move on and worry about it when it comes time to sell.
As a final FYI, some dealers (like Car Max) won't buy a car with any marks on the carfax, no matter how great your story is about minor damage.