Can you ask your broker to see if the shares are restricted. I would think that an email from your broker stating, either way, if the shares are restricted would cover you.
Imagine if there's no restriction placed on the shares at all.
Droll, just for my own education, if they are all lumped together, how do you differentiate which are which? Say you have 500 shares and 450 are restricted. What happens if you try to sell 100 shares? I've never had a combination of restricted and non-restricted before.