He half considered stopping the wave at the shore in a highly unnatural way, but figured that any destruction it left would be both amusing and probably repaired the next day, so Crowley let it go on its merry way, following the drone - even around corners, toppling small food carts, and crashing against buildings as it traveled significantly further than it should have been able to before finally fading to flood the area.

It's a miracle! Unfortunately, not all miracles are good...