Sorry to hear that

(think i put the mockers on you, wishing you good luck) . Some people maintain that most of the conversion happens in the first 15-30 mins if thats the case it'll probably be fine

(check your runnings for the gravity and see if it has converted).
Also you could try adding another pound or two of pale malt to the mash (for fresh enzymes which should sort it) it'll be stronger but when was that ever a problem (don't forget to get the temp down to about 65-67C or so don't worry about watering it down esp if you add some extra malt).
If it hasn't all converted you will have killed off most/some of the enzyme that breaks down the dextrins (mouthfeel/body) down to more fermentable sugars (thats if you haven't added fresh malt at 65C).
The upshot is that you could have a brew that ends up with a very high gravity (lots of body).
I'm pretty sure you could remedy this later on in the fermentation (if it is the case by adding brupaks dry beer enzyme which will reduce the dextrins to fermentables)