if they ask you to leave ... leave. illegal signs are basically BS, keep it silent and out of sight as always. This topic is something that is probably better discussed in person - face to face, Interwebz forums are just fools play.
I agree almost 100% Its not illegal to put signs up especially in your own store as was being discussed. this thread is about repercussions of said actions. Someone correct me if i am wrong. So tell me why you would intentionally walk in a bakeshop or anyones store open carrying when you know they dont want it there. Because you can isn't always a good enough answer.
Exactly. If you're willing to spend money there, carry concealed.
Otherwise, hand them one of these from TSRA (or put it in the door):