In Illinois you could, in theory, be jailed for up to three years for violating a web site ToS. (classified as "Computer Tampering")

It's a statutory offense, so you could get lucky and the prosecutor wouldn't prosecute it, but it's there for them to use:

https://www.ilga.gov/Documents/legislation/ilcs/documents/07...

... "the owner authorizes patrons, customers, or guests to access the computer network and the person accessing the computer network is an authorized patron, customer, or guest and complies with all terms or conditions for use of the computer network that are imposed by the owner;"