Wiretap still active when a generator is completed by Invocation: Weaving Spiders

ChaosWam

1. Get a generator to 90%
2. Wait until a teammate nearly finished Weaving Spiders
3. Apply Wiretap to the generator
4. When the generator is completed, the effects of Wiretap remain on the generator until the perk expires.

This also works with Blast Mine, but for obvious reasons it can't be activated by the killer when the generator is finished but you still have to wait out the activation time to use the perk again.