Most of these types of "events" are well documented on these posts. Just read through them.
I have been asked to leave the following in the past few years of open carry everywhere I go. You can see the percentage of problems is extremely low. Literally hundreds of places with no problem.
Lee's Liquor (problem resolved to my favor, manager did not know corp. policy)
Cinedome 12 (No response from head office)
Costco (Written company policy)
Michaels (No response from their HQ)
Henderson Library (Currently working on it)