Basically I got my IFR clearance and a hold for release within the DC SFRA at an uncontrolled airport late at night. Had a brain fart and departed without getting my release or void time. I immediately contacted departure to check in like normal and they never mentioned it. I didn't realize what I had done until after I landed. Should I file a NASA report or whats the move here? I feel like they would have chewed me out immediately after contacting departure.

Sorry if this is the wrong place to post it, I couldn't really find a channel that looked better for it