I'm not an EE person, but neon lights can stimulate some wireless computers. For example, one time I parked my bike under an "open" sigh at a restaurant. The sign was low in a window so was probably less than 18" from my computer. I came out after eating and my computer had added numerous miles, had an average speed of over 45 mph and a max speed over 60.

My wife had a Cateye wireless that hit 94 mph parked near a neon beer sign at a gas station. See pic below: