[HiImBrian]

Same sorta thing happend to me. I went to my ladies house and it worked fine. 3 hours later when I left my autostart and keyless entry didnt work. I had to basically break into my car just to find out it wouldn't start. Finally it just worked and I drove my car away with the lights flashing and the car alarm screaming haha. A mile later everything was peachy keen. Moral of the story...bad alternator