Lordstown Assembly was never "torn down", and it would certainly take longer than a holiday weekend to do so. From the wiki:

"Conversion van production at Lordstown ended when production of the Chevrolet van's successor, the Chevrolet Express, moved to the Wentzville Assembly in 1994, leaving Lordstown to focus exclusively on compact cars."

The assembly plant is still there, although GM shut down all production as of March 6, 2019. The plant was sold to Lordstown Motors on November 7, 2019. Still intact, definitely not torn down.