Think big. The experiment has been done over 168,000 light years.
http://en.wikipedia.org/wiki/Supernova_1987A
The neutrinos got here 3 hours before the light. (Empty space isn't really
empty. The dielectric constant slows the light down a tiny tiny bit.)
I am not sure that this is a valid test case. Although the neutrinos
were detected 3hrs prior to the light detection from SN 1987A, with some
possible detection 5hrs prior to that at LVD also under the alps, the
detectors were detecting electron neutrinos which is not the same
flavour as those in the OPERA experiment. As these beasts oscillate
between the different flavours I think it could not be excluded that the
muon neutrinos, which, if I understand correctly, the OPERA detectors
are trapping, had already passed by.
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