In Texas you will lose your CCW if you enter a posted establishment (and get caught). I never do business in a store that posts. They don’t need my money. However Jorge Zimmerman is finding out what will happen to you when the King’s justice dept gets involved. Good thing in Texas most places don’t post signs. Good pro-gun culture.
Texas has very clear sign requirements, the 30-06 sign requirements, that a business must post. Colorado has no requirements. There are shopping malls that my wife likes to go to that are supposed to be no carry zones per Rocky Mountain Gun Owners web site. I have looked and never saw a sign. Maybe it is stuck on the bottom of a filing cabinet in the mall offices.