For what? Who cares if they're saying amen or go satan? Seems like you do. I don't. The article even states that there was no complaint of traffic or parked cars. Again, it makes no difference why they were gathered there.
Would you need a permit for a gathering of people for Monday Night Football as the article states. They sometimes gather more than 20 people.
From the article:
>Chandra Wallar, the county's general manager of land use and environment, said the county has re-examined the situation and decided that the Joneses don't need a permit after all.
Religious assembly, under the county land-use code, is defined as “religious services involving public assembly such as customarily occurs in synagogues, temples, and churches.<