I know that feeling all too well.....
it was getting late in the day, and I had been flying my Magic (bright yellow) and my 1/4 scale extra 260 all day. The sun was on its way to bed and I wanted to get in one more flight with my 260. It went up, and it turned jet black. Same thing you did is what I did. Had to figure out which way the plane was going....
needless to say, after landing it in one piece, I almost tossed my cooookies