1. That is not the UDF gunbuster sign I am familiar with.
2. In the Ohio gun community, UDF is a well astablished CPZ
3. The sign does not appear to be in compliance with ORC 2923.1212
4. The spirit of the sign is that they only want criminals armed.
'Just stop going to UDF. I would love to see you open carry and be charged with trespassing because you would win, (the sign is non-compliant with the law).