Evidence from LA suggests that this has happened as restaurants negotiated cheaper rents in response: https://anderson-review.ucla.edu/a-15-minimum-wage-may-have-...
Restaurants do also have a tendency to be run out of business and replaced by other restaurants when the minimum wage gets hiked though. Restaurant owners take hikes extremely personally. The market can be an unkind mistress.
There's a reason most new restaurant close after 1-5 year. [0]
[0] https://www.cnbc.com/2016/01/20/heres-the-real-reason-why-mo...
this also gives rise to ununionized outfits as well. as theyre able to keep wages lower and bid more competitively.
Ford has been unionized since before World War II. Actually the opposite happened in its case, unionizing GM and Chrysler made unionized Ford easier.