My friend owned a 4000 sq ft warehouse that was licensed for automotive repair, but all he did was run a NASCAR team out of it, prepping the car there for races.
Being 2008, he fell on hard times and wanted me to move into his place instead of a popular strip mall location I was in (that had a 20 year old conditional use permit in place for car sales I rented under).
The city would NOT let me operate an online car dealer from his warehouse. They wouldn't sign off for it for the DMV. They said car repair was one thing, but if I wanted to sell cars from there, even online, I needed a conditional use permit process to approve it. It was several thousand dollars, and they could not provide any insight to tell us if it would be approved.
So I didn't move. My friend lost the place. And it sat empty for EIGHT YEARS. Because my local city government wasn't sure they should allow me to sell cars from a place... A place that technically was allowed to have it's entire storage yard full of broken down cars in various states of disrepair if it wanted to.
Great decision on the cities part...