Grassroots legal question - can you help me? [View all]

A friend and I were collecting signatures for 2 Democratic candidates outside the library in our town when a woman who worked at the library came out and told us that there was no "political" activity allowed on the library property and that we had to leave. If there were any questions, we should contact the library director on Monday.

This is after we were refused access to the local supermarket parking lot for nomination papers. Since that was private property, we went to the library.

I know that it is mandatory that post offices allow you to collect signatures as long as you don't block the door (can't wait 'til their privatized, eh?) but what about libraries, town hall and other publicly owned properties? Does anyone know what the law is?

Thank you in advance.