Chance, I encourage you to continue to support ACLDN and keep you membership, as I do. There is a significant difference between a case of intentionally carrying in violation of law and the situation described of carrying where the proprietor does not want you to do so, but there is no force of law on the matter. The ACLDN position is to support legal carry situations, but not to support any intentional violation of law. I suggest that position is completely in line with the ethics prescribed for The High Road.
Those who choose to engage in civil disobedience by knowingly violating a law they believe to be unjust or improper must be prepared for the consequences. If they can find supporters for their action in order to become a test case for the validity of the law, more power to them. However, they should not insist that other must be party to their illegal action.
I refer you to the synchronicitously timed thread over in Activism proposing efforts to
change the law prohibiting carry in U.S. Post Offices. I, and many others, regularly stow our carry guns in an adjacent parking lot before going into a PO. Others do not, choosing to carry into the PO property. We each make a personal decision; but if we choose to violate the law for ten minutes we should not expect others to defend our action simply because we want coverage.
The ACLDN is a valuable organization that provides great support for the armed community. Use the network for its stated purposes; do not abandon it because it is not 100% in line with your wishes.