I would contact the city, explain what happened, and see if they can't correct this individual's bad behavior.

Also, may be do a bit of "behavioral interviewing", like many companies do.

. - Since you're in the Big Apple, I'll use a local example for you - Bryant Park. http://www.bryantpark.org/about-us/press/20091019-cj.htmlIt's a battle of wills to change behavior and not always easy.

So, you do need to screen for behavior, as well.

Such behavior will not be tolerated here.In addition, we've locked 3 other NRU threads and pointed activity here.

It also give you recordings of your visitor's behaviors.

I agree with you that 3 messages seems like a small number to achieve a ban.But you do have to understand the reasoning behind the ban for repeated colleague requests using the exact same text in the message - very easy for a spammer to program that kind of behavior to happen automatically.My suggestion - insert the name of the person you are contacting in your colleague requests; that would make it very hard for multiple requests to be identical.  

The intrinsics, behavior, and performance of RV parks can vary across a wide spectrum.

That said, I think you also need to really look in the mirror and be honest with yourself about how your own behavior is creating this situation.

Sometimes leaving their posts up is the best way to document their behavior.