Best bet is probably to just use a private lobby for games.
If you want to use the chicago server in your private lobby myself or wokmage can set that up for you. You can add me on steam, one of us is usually on or checking the forums daily so if you message us a day or two in advance it can be set up for you.
At the moment the chicago lobby doesn't have a public rcon so you most likely will not be taking it away from people that just want to lobby.
Also, if it does start getting used frequently i'll just make like, a google schedule thing for when it's booked