Well, comet Elenin's closest approach to Earth has come and gone with no doomsday events, or anything of note. I used this opportunity to try and image any remnants of Elenin. I saw nothing on stacked images from GARS05. As a control I imaged magnitude 10 comet C/2010 G2 Hill just before Elenin.
Comet Hill was higher above the horizon, but closer to the Moon than Elenin when this image was taken. It is quite clear, as are several faint galaxies (magnitudes 12-14). So any Elenin remnants must be fainter than a CCD magnitude 10. I'll leave off any further attempts to image Elenin until the Moon has waned somewhat.