Not sure why you want to be called chicken but I hope it helped :P
Nothing wrong with your approach, and it is not chicken, it is surviving to advocate another day. Two possibilities existed, they would do and say nothing, or they would do and say something. Risking your lively-hood on a 50/50 bet would be the works of a compulsive gambler.
I do not open carry on the way to work as I am not allowed guns at work or even in the vehicle/parking lot. While I agree with those whom say they do not want the government saying what can be done with private property, I offer this is a dual private property issue and I do not feel an employer has the right to tell you what you can or can not have in your car. If the lot has public access then there should be 0 ability for the private owner of that property to regulate the contents of private vehicles on it, the end.
Your situation you faced today is not a big deal or act of a coward, it is wisdom so you kept your freedom from being wrongfully taken or delayed so you may advocate another day when such risk do not have the same implications and results.
I would rather have the wise on our side vs the bold whom may not be able to afford their freedom if wrongfully treated.