I've only been a wormer since August 2007 but I've read that one shouldn't overdo the coffee grounds. I do compost/mulch and I have added a wee bit of lime if I have a lot of coffee to neutralize the acidity but I don't think worms can tolerate lime. . .

Hope you didn't kill your worms. Do you have room to add more bedding and more neutral stuff - crushed eggshells and cornmeal maybe? (I don't want to start a riot here, I am just guessing) Or do you have another container and you can add more of everything (except coffee grounds and tea bags) and calm your worms?

I know they don't like being flooded. . . once when I overfed I added more bedding (a lot of broken up corrugated board) and left the top off and things got back to normal. But I was fortunate and did not have a mass exodus.

GOOD LUCK! I hope someone like SQUEEZE sees this post and can offer you some help.

I'd get those poor guys out and put them in a new bin or bedding.
And THEN try to correct the bedding.

the problem with grounds is that they don't hold water at all, it drains right thru them and they wick water away from other things, but they're nor really a useful food for worms unless well mixed with other fine food waste, about all they do is add texture to the bin to prompote aeration and drainage

and they are NOT too acidic, the acidity goes into the coffee, the grounds are left at about pH 6, fine for compost critters

so first you subjected your worms to an astringent situation, sucking vital moisture away from them, then you tried to drown them - no wonder they're not happy

as suggested, get more bedding mixed in and get the moisture properly balanced, worms breathe via the moisture on their skin, they need to be evenly moist - and when making food additions to a bin, do it by handfuls, not bags full or you risk causing aerobic hot composting

Bill