Hmm… The way to go probably involves creating a text document of the keyframe coordinates, then pasting this data into Maya. Just for fun, try to copy a keyframe, and paste it into a text doc. Check out the numbers, and try to paste it on your animation graph in Maya. Then, try pasting a goup of keyframes, rather than one.
A reverse fix would be to motion track the output from AE, using MayaLive or Boujou. This is probably not the best way.
Also, If you need simple 3d to follow a comp camer in AE, try Zaxwerks Invigorator. It’s good for motion graphics, text, etc.