I would have just refused to accept it until they fully charged it. And pointed out the debris/fries. If they refuse to clean it, start taking pictures and a video and inform them that you are doing this to document the condition it was sold in by Tesla. Generally that gets word to the manager pretty quick and they get a detailer in to make it right. I have found issues with every car I have ever bought (dirt/smudges/etc.) and have refused to take delivery until it was fixed...
I took delivery of a new blue 2021 LR with FSD in late Dec. 2020. So after two months and about 1700 miles I can that I have never enjoyed a car more. I have had zero problems and really love driving the car. So much fun to drive, sooo much better to drive than my Lexus. Haven't taken a long trip yet but plan to take a trip in mid March.