User blog comment:IamJakuhoRaikoben/Chapter 370: Demons Reincarnated, Review./@comment-110.20.169.85-20140207230843/@comment-7418318-20140207232019

I don't think so.

Remember that Levy calculated the course of Cube from what Happy saw at his arrival and departure from it, which means the Cube was already on course for Magnolia before Happy and Natsu came crashing in.

Either they got the location from Crawford and headed for Fairy Tail in response to Temesta being beaten by one of them or from Sayla somehow being able to sense either Elfman's or the Lacrima's location. Considering how she also seemed aware of Elfman's actions to me, I think she's able to track Elfman, not that he's fallen under her influence.