This action was approved by the top management at Atlantic. So while you're at it, don't by fuel from any Atlantic Aviation properties and call the home office. Odd that the letter was addressed to all fractional pilots. I have seen several 121 pilots parking there and commuting.
I have a feeling the straw that broke the camels back was a recent NetJets pilot who parked there, loaded the wife, kids and luggage in Atlantics van and then headed off for vacation. Dumba$$ could have drop the family and bags off at the terminal, then parked there. A bit of discretion goes a long way.
When I worked at Swift this happened all the time. No one cared and the van drivers love the tips.