I would bet a huge amount of money that this is another incident of "fake hate", and another large amount of money that the "noose" was placed in Wallace's garage by Wallace himself or someone with authorized access to the garage who is an ideological fellow traveler of Wallace and BLM.
As for the idiot who had a plane fly the confederate flag over the track after the flag was banned, well, the jury is still out on that one. It would be an expensive stunt. (How much does it cost to hire a plane to fly a banner?) And while a flag may offend the easily offended, it's a long ways from the death threat that a noose consists of.