I doubt it would be anything huge -- certainly nothing any time soon, and probably not huge at any point. First of all, some dealers, including mine, have been recommending that we do it at 3750 miles, which is essentially the same as when you did it. I didn't follow that, but I think we can be sure that even considering the possible self-interest involved in that recommendation, they wouldn't be saying it if it was terrible.
And from these sites, we know that LOTS of people have done the first oil change that soon or very close to it, and nothing terrible has happened. Which doesn't answer the whole thing, because the real question is whether there would be anything down the road. I believe Honda/Acura that it's best to wait longer, but considering that recommedation of the dealers plus that so many of the internet site members (who are mostly pretty knowledgeable) have felt comfortable doing it sooner, I'd be shocked if there was anything real bad about what you did.
As you can see, I don't have any real knowledge on this -- I'm just considering what others have said and done.
Let's see what our real experts can say about it.