I'm using an activator since I need the object to have a script attached to it at all times. I understand I can just disable the object but that ends up disabling havok as well. If I set it as a marker I can still see the activate text show up if I hover over the object. The water activators don't have the activate text so I assume it's mesh related. Is there a way to disable it? Thanks.

It'll have to have no name to disable the rollover text in which case it'll not be able to be activated. You could use SKSE's http://www.creationkit.com/SetName_-_Form or, probably better for this context, make the activator nameless and add the name via filling an optional alias with the reference via http://www.creationkit.com/ForceRefTo_-_ReferenceAlias, then remove the name by http://www.creationkit.com/Clear_-_ReferenceAliasing the alias.

Actually this is just what I wanted. Thank you!