Just so it is clear. A guard can say whatever, the restaurant owner can say whatever, the truth is that a law was passed a couple of years ago in the city, where clients and non clients can use any restaurant, bar, coffee store restroom alike. If I ran into this type of issue, I will definitely report the place.
Actually not to long ago they made a tv show with hidden cameras showing the discrimination on using a restroom.
Of course every bar has the same sign saying if you are a patron or customer you can't use the restroom
1st they showed some poor cartonero begging to use the restroom to he was told that it was out of service
2nd they showed a bolivian looking guy dressed as a construction worker and he got the same thing
3rd they showed this dude dress in a business suit talking on his phone who just slowed down on his way to the back of the bar to ask where the restroom was without even getting off the phone and he got pointed to where it was with no problems or questions.when he was done ,he just came out and still on the phone gave the classic ''gracias campeon'' and left'
I think there was even a policeman interviewed and he said he had the same problem and said that he made friends with the chino of the block to let him use the restroom.
After all that, the production when to the city codes and ordinances trying to find the regulation stating that only patrons can use a restroom and actually found the opposite due to public health and sanitation any commercial business must let anyone use their facilities
Look it up i think i watched it on you tube..
When i find myself in that situation i always use the ''FIINNE I'LL JUST TAKE A DUMP HERE '' and start to undo my pants.and like magic they can't open the door to the restroom fast enough.
Sometimes pointing your ass at someone works better than a gun
Sorry if it was to graphic didn't mean to gross anyone out but actually i used it twice and worked fine.