This happened in the morning as I turned on the accessories. Put down the windows and turned on the music without starting the car as usual, but as soon as I did that the power died. Tried to start the car, nothing. Went to pop the hood to check the battery, and tried it again and it started. Haven't had a problem with that since, but I've noticed that my fogs (non-factory) won't turn on at all anymore.

Short in a fuse somewhere?