Don't change a thing.
I hope for you they don't ressucitate these things into the cache as they do occasionally, that might cause your nightmare to return.
Also, beware of dodgy directories that scrape DMOZ data automatically, and replace all the nice html links for deadly 302 script links. Not much that can be done against these, it's automated.
The only way would be to ask DMOZ itself to remove the good, valuable link they have to your site. Lord knows how long this might take. I recall from my own editing days that DMOZ considers it their right to list your site, and that you have no right to require being de-listed.
I don't suggest you do this or that DMOZ changes their policies, I'm only pointing out how absurd the situation has become when begging DMOZ to remove your site from their listing has become something a rational websmaster who values his/her website might want to consider. It's not DMOZ's fault, it's just that their data is being exploited with sinister intents by a tiny minority of unscrupulous webmasters.
And also pointing out that while you might have some control or influence some of these links to your site, some of them are cold, automated and completely deaf.
You just have to wait for Google to fix this bug.