Legality should have nothing to do with this; if someone wanted to make a case of it, they could claim that a shopping mall is the new "town square", which gives you the right to assemble. I'm not saying this is right or not, but it's an option...
What's more important is the press. No employee should be like that, to any customer.
What's more important is the press. No employee should be like that, to any customer.