Re: After 7:34pm.
Jay would definitely notice something is up. Might even sidle over and intervene to prevent small antics from turning into big antics, but dang those gremlins are tricky, and he's just a guy. A highly trained guy with guns, but still.
Cloud can see in the dark, but the fire would mess with his night vision, the way fires do, so he'd be in a similar boat to Jason. Suspicious, quick to stop little stuff if he spots it, but not in any position to prevent the disaster about to happen.
And Luke ... well, if Luke attends, he's got a bad feeling about this.