Camera Focal Length not exporting with FBX (or how do I bake drivers?)

I’m trying to transfer my camera animation from Blender to Max. Camera is part of a bigger rig, so I needed to bake its animation. Visual transformations work fine, but I’ve also set a driver to my camera’s Focal Length. FBX export doesn’t bake this by itself, and I can’t find a way to bake the driver into keys in Blender.

Any help or tips?

To recap, transformation bake works, a driver set to Focal Length won’t bake and won’t export with FBX.