Well, unless you have inside information from Dan that was told to you in what you believe was assumed confidence, I don't see the harm in talking about interpretations of the song.
I personally have no such inside information. It seems to me that first off, 10:04 PM isn't a very lyrically dense song. It's verses are short, but for the most part, don't have a lot to do with back to the future. The chorus is pretty direct though.
"At ten oh four something happens that will take you and your love away from me, at ten oh four something happens and I'll tell you what your future's gonna be, oh that you're not coming home or your coming on home to me"... that is just my interpretation from distant memory, I may have fucked up some words.
Whatever that chorus is actually intended to mean, it definitely uses back to the future as more than a passing refference. There may be some kind of metaphor (i frequently misapply the word "metaphor", so appologies if this is such a case) in those lines, but I think on at least a superficial level, the chorus is ABOUT back to the future in a somewhat undeniable way.
I don't really know what the fuck I'm talking about mind you. It just seemed like the kind of argument I should pointlessly involve myself in.