I am not advising people to break rules but, if you keep a mask in your pocket and whip it out if somebody tells you something, I think you will be fine. The only instances of cops wrangling people to the ground or actually tasing people without masks, have been unruly people who refused to "comply" with a request by a business or a Law Enforcement Officer. I would 100% comply with either of those, but I might take my business elsewhere in the future. Just remember that a business owns its own property and they can set the rules in regards to who they provide services to. (Of course they are not legally allowed to discriminate on the basis of many factors, but not wearing a mask is along the same lines of "no shoes, no shirt, no service" and those types of rules are allowed.)
I follow rules on masks if there is an explicit sign saying, no entry without a mask. If there is no sign, I use my own judgement, but keep a mask in my pocket in case I am confronted by a Karen Manager.