Perhaps you're missing some details. Every single short-term rental is licensed and registered. In addition, neighbors and others tend to be pretty proactive about reporting issues with visitors.
My guess is that enforcement will begin with investigating neighbor complaints and then go from there.
As far as enforcement, the police have been evicting people on the spot and issuing each violator a citation with a mandatory court appearance and thousands of dollars in fines. Though I haven't heard of anyone refusing to vacate, my guess is that you'll be arrested and charged with trespassing.
No matter what happens, it's a huge waste of emergency resources and that eviction will certainly come with all the sympathy of emergency personnel being pulled away from their primary roles to deal with entitled 1%ers.
As far as the hope of non-enforcement, that's a pipe dream. In municipalities that have begun cracking down this is happening daily.
Edited: 04 December 2020, 22:28