I drove to ORD today as I was about to buy 5 tickets (one-way) and it would have potentially saved me $115. Since Frontier has pared down schedule from ORD, the counter is open only for a few hours everyday. When I reached the counter, there was nobody in the line and the next flight out was almost 2 hours away. But the lady at the counter said that their system is "acting up" all-day and she cannot do any ticketing, and asked me to book online. That sounded like a rehearsed answer & it smelled like BS. I politely asked if she can give it a try and if it doesn't go through, no harm done. She said doesn't want to touch the system is it is "acting up" and it might affect her to check-in and asked me to try again tomorrow!
I asked her if I booked tickets at airport will she charge me extra, just wanted to get an idea if it is worth coming back again. She said if the "system adds $25 for assistance" they are asked not to override it. Very shady!
I ended up booking online as frontier is still cheaper compared to other options.