how long do you have after afk pop up until you're kicked from list?

[kingpinner]

I have been at jboots all day and am #2 on the list. I have to pick up my son from daycare is 3.5 hours though. I see the afk pop up is coming about every 8-12 minutes... curious to know how long i have to click that button after it pops up before I get kicked from the list. It's a 15-20 minute round trip to pick up my boy in prime time traffic lol. Unfortunately, I have no one around who can play for me while i do my trip. Fingers crossed 2 drop in the next couple hours.