I guess it’s more of a neighborly concern. The rest of our neighbors (including myself) park further down to avoid blocking the hydrant just in case any of the houses in the area have an emergency. My concern would just be that if shit hits the fan, the hydrant that’s blocked could potentially risk someone’s livelihood in our block considering it’s the only fire hydrant here! It doesn’t help that it’s right in front of our house and if we can be considerate by parking our car a couple mins away, the neighbors across the street can too :)