Well a few months back I ran out of propane while grilling and so they only place I could think of was the Shell gas station on 48th and Old Cheney here in Lincoln. I happened to be carrying and noticed there sign, normally I would have loaded up and drove on, however I had steaks sitting on the grill waiting. So, I went ahead and unarmed (because I follow the law...shocker) walked in and paid for the propane, while in there I handed the clerk the "No Guns, No Cash" business cards that I had printed. I asked him to pass it on to the manager, thinking that he wouldn't I walked out with my propane and headed home. Today I needed gas to mow and stopped there because it was on my way. Walked to the door and no signage! So for now, unless I missed it, the Shell station on 48th and Old Cheney is allowing for CCW holders to carry.
In case anyone is wondering I used vistaprint to print them, I don't remember who made them originally, I think I got the business card on here.