5 lug nuts can be loosened in about 5 seconds with a heavy duty impact wrench. If you’ve ever seen tires get stolen it only takes about 15 seconds to pull off.
That will be enough to disable the car. It’ll get moving before they notice it.
Make sure the battery is at full charge. Chevy typically uses 12mm or 14mm lug nuts in their trucks.
Used motor oil and sand in a water balloon also completely obstructs the view through any window and can’t be cleaned off.
What the hell is the set up in that room, are there chairs just tossed all over?