I was at Disneyland last November and they check backpacks going in. It is nowhere near TSA level. They just ask you to open it. I didn't have to do a thumb scan.
As I have mentioned on here many times, I carry a backpack every time I leave the house and I had my entire EDC kit in my pack each day I went in, including a RSK Mk1, Leatherman, Swiss steel, zippo and mini bic. (Items they might have problems with, IDK if a lighter is all that big a deal)
I didn't hide anything but I didn't offer anything while being fully compliant with instructions. They didn't ask if I had any sharps. Had they said I couldn't bring it in, I'd have taken back to the room.
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