No laws broken. Company policy? The limited edition cards have APA printed on them and QR code that leads to a Union commercial. Historically that does not fly with the company and is clearly breaking a policy. Be very careful handing those out. A customer could be offended. You won’t be fired but a carpet dance will happen. You are dealing with AA which has rules for employment. Many have lost jobs over not following the rules.

Distributing or posting literature on Company property, or posting or removing bulletin board notices requires prior authorization of the Company.

Here is the policy. Maybe the Union has permission.