you can try dosing a sample with some calcium chloride, this will enhance the maltiness a bit. you can also try a tiny bit of table salt to see if that helps.
you could dissolve some lactose or maltodextrin in water and add that to taste as well.
Either one of those would spark up fermentation again and honey would actually create a drier beer.
Malto dextrin is not ferment-able and may add a little sweetness and body back.
At 1.012 I would not expect the beer to be that dry though, are you sure conditioning and carbonating won’t bring out what you are looking for? Carbonation can really round out a beer nicely.
I know when I started with water additions to achieve the same goal my first batch of pale ale seemed dry as well but I realized the water additions were doing just what they needed-added the crisp hop flavor/aroma I had been lacking previously.
Personally I think you should let it finish and package and then sample the finished beer.
You can always adjust the grist on the next batch if necessary
I’m assuming you meant to say sulfate, not sodium. Getting the sulfate up to that level will enhance the dry/crisp/bitter impression of the beer. Let it carb up and then see what you think.
If you really meant sodium, can you tell us more about where you learned this technique and what it’s supposed to do for the hops? I don’t think I’ve ever had a beer with that much sodium, except perhaps a gose. Usually it’s 1/10 that at most.
I agree with all the people who say to taste it, and adjust next batch.
I prefer to raise the mash temp as opposed to adding more crystal, because I feel like it adds body and fullness without adding overt sweetness. I would raise the mash temp 3-4 degrees, and see if that works better.
Personally, I think most AIPAs with 10% crystal are way too sweet and cloying unless you add some sugar to dry the beer out further. Agree with the others, package and drink it. Buy the end of the batch you may find it is not too dry, after all. 1.012 is certainly not excessively dry for an IPA. In fact, its about spot on. For my tastes, anyway.