A cleaner in gym assigned to stare at me

Where - LA Fifness at 12304 Barker Cypress Rd, Cypress TX 77429

When - Yesterday afternoon. 07/18/2017 around 7 PM

Who - A female cleaner, middle age Latino, about 5'3" and 145 Lb

How - 20 seniors or so were attending waterobic class in the swimming pool of the LA fitness from 6pm to 7 pm. The female cleaner had been doing window cleaning around the pool at the same period of time. When I was walking from pool entrance to the front door of the gym to finish my workout and leave the gym about 7:45 pm, the cleaner was assigned to to stare at me and approach me, pretending to run into me accindently on my way.

What for - The signal they have been sending for more than 20 years to me :  We'll follow you wherever you go and inform the local arthourity that a suspecion is getting to your area and the local arthourity' job is to let the suspecion know: you are under our sivalence.

My feeling -
It is an illegal warantless stalking, a government sponcerd harassment, a violation of my constitution right.

How to verify?
It's easy to keep the LA Fitness accountable. Who instructed the female cleaner? Where did you receive the instruction to deal with me like that?