It generally takes at least 45 minutes for complete isomerization of the alpha acids, so you're going to end up with a lot less hop bitterness. But with a brew that's already tipping the malty scale, I don't think it's going to have too much of a detrimental effect. What was your exact hop schedule?
For art to exist, for any sort of aesthetic activity or perception to exist, a certain physiological precondition is indispensable: intoxication. - Friedrich Nietzsche