The problem with space junk is in Earth orbit. The Tesla will be in orbit around the Sun if successful.
BTW, people are already showing up at the viewing locations.
Two hundred years from now, there will be a great disaster in space involving the loss of a craft with dozens or more aboard and (against all conceivable odds) it’ll be that dang roadster’s fault!
Will be very impressive if it works.
I learned from our local news broadcast that the Tesla Roadster is destined to fly to Mars and go into orbit around that planet. I can imagine an effort in the distant future for bringing it down to the Martian surface and going for a flying run on its recharged battery.