Sounds like you would have been or currently are a perfect candidate for a lawsuit.

Pretty regular updates over on r/RIguns regarding the active lawsuit. Perhaps you would be interested in becoming a part of it you certainly have standing. (IANAL, and have no affiliation with the active suits against the state. I am just a concerned RI gun owner who stayed at a Holiday Inn express last night.)

To answer your question more directly, you would have to block the mag or modify it in a way that prevents loading more than 10 rounds, regardless of how it shipped from the factory. Folks in NY/NJ/CT have been dealing with this for decades, and that's typically the simplest solution.