Time to invest in a high power water/steam cleaner...
Don't you know that cleaning sidewalks is racist?
Seattle-Area Councilman: Hosing Poop-Covered Sidewalks Might Be Racially Insensitive
That was my thought.
If you soak them (including their stuff) every morning they might just go somewhere else.
Time to invest in finding a new home/business OUT of Calif-—Rental truck to move yourself—leave NO TRACE for Calif officials to bother you in the future.
There are plenty of places he can run a bar without that kind of stress. Small towns all over the country welcome good business owners.
Calif already has tried to create legislation that FINES a person for leaving the state.