Yes, they are pretty common in LA and it's like under $300/month to lease one. I always tell my workers to get a cheap BMW 3 or a C Class. Even our production assistants, craft services, and interns drives them or a Benz CLA250.
Model 3s are known as the $35k car even when it's not being made at that price yet. Most people just use the lowest number like a $56k Porsche Cayman could come out over $100k but it's still just a Cayman and not a 911.
Model 3 will never have the image like a Model S or Model X. Honestly, I don't care because I like being anon and no one looks at me on the freeway. After 2 months only 1 guy looked at me and he gave me two thumbs up. My Model S loaner got tons of looks which seemed weird since they are all over LA.