RaceTrac review: rude employee with bad attitude

I'm currently in rough times living out of my car, and this racetrac is my go to cause it's close to where I work and sleep. I don't make a lot of money and I'm by no means rich, but over 50% of my income is on survival which is food, drinks, and gas. And where do I come for all 3 of those 90% of the time? Here. So when an employee named "Marcy" (Spanish looking, maybe mixed races with something else like half Mexican, or she's Puerto Rican, or Columbian, or maybe Italian, but dark skinned, and wearing entirely too much lipstick and make up.) yells at me and BANS ME FROM THE STORE for walking out with a cup of WATER (never stole from the store and spent probably a grand or two just on ice cream and candy alone), I feel completely disrespected, and this employee needs to be fired or disciplined. Her logic is very flawed, since banning me (when I I never even stole, water should be free and at the moment I was broke and dehydrated that should not be a $.42 policy there should be a broke and homeless clause policy) only costs the store hundreds and thousands of dollars in the long run .