Yep. Some cult tried summoning it and a bunch of its tentacled minions. We weren't able to permanently take it out- but we used a roller coaster to electrocute it. It'll be dormant for another 60 years or so.

Wasn't an easy job Ecto-1 had some car trouble, I nearly got dragged away by some squid-faces in a sewer, we had to look through a bunch of Ray's old comic books for help, I fell off that roller coaster - but hey, if we can handle all that, probably can handle whatever this world can throw at us.