I did but I had a rather packed black messager back styled purse for my camera and a billion rolls of film, the curse of a shutter bug. They only requested that I take the larger items out and open all zippers. For the 13 year old girl I had with me it proved very embarrassing but she was over it as soon as see was in the park.
We did discover that if you buy a clear plastic backpack you would be whizzed right through the line with hardly a moments glance. It was wonderful. My mother had the backpack and said it was very pleasent to carry and since we were there in January it was not extreamly hot with the plastic.
Also, they will make no arguments about bringing in food. Their job is strictly security no to monitor all the food. They even checked some coolers in the line ahead of me and made no comments about them bringing in the food.
Just wondering, when in January? I will be there in January also! Have a great trip!