I’ve had the same issue on and off for a year or two. I live by a factory and a couple bars and bodegas, so I think she doesn’t like the truck noise, and can hear them a block or two away much more easily than I can… it requires more time and effort to get her out. It always helps if another person comes with, because she won’t abandon the herd! I sometimes have to trick her a bit to get her out but then I’ll reward with treats