Got new fur baby and now have to make change in vacation

I just looked at their website again and it says 3 dog limit but the dogs need to be under 25lbs. I wish they would make an exception for a 4th dog. We picked up a rescue Chihuahua a couple of years ago. He is a great little guy but it has caused us problems with a lot of parks because of dog limits. He only weights 4lbs.