Christian Bikers?

My friend was at a restaurant in Easthampton (not eastham and not east hampton) for brunch today and a group of bikers walked in and were rowdy- which whatever-but then as they were leaving they stood up and loudly said the pledge of allegiance before peacing out?

My friend said they had leather jackets that read Christian Bikers on it. I have never heard of them before nor anyone doing this and it kinda freaked her out a bit. Can’t say I wouldn’t feel uneasy either TBH.