Is it okay to drop my tip out beds at rest stops or Walmart?

Funny story about parking with your slide out over the grass. I was walking by the customer service desk and overheard a guy complaining to management that during the night the lawn sprinklers came on and got the underside of his slide wet and left water spots down the side. The nerve of some people, get to stay for free and still complain, these will be the ones that ruin it.