They projected the words “heil” and “boycott” alongside the large Tesla logo, as if to read “heil Tesla” or “boycott Tesla" on to the nine meter high building on Wednesday night

While addressing Trump supporters in Washington on Monday, the tech billionaire brought his hand to his chest and extended it straight out, twice, before saying: "My heart goes out to you." The gesture sparked controversy as it drew comparisons to a Nazi salute.

The "Sieg Heil" heard 'round the world has made its way to Germany, where activists are using that now-infamous image at Tesla's Gigafactory.