I've got a friend of a friend who knows something of Rhode Island law who's checking on some questions I have, but it seems like their laws are the same as the laws in most states regarding the investment of public funds in the private sector in the form of financing and loans.
What it boils down to, then, is that when 38 Studios took the loan money from Rhode Island, it made them subject to the same open meeting/"sunshine laws" that apply in many states. Obviously, too, every bit of this transaction is subject to open disclosure through FOIA requests.