This is incorrect. There is a specific "Booth" at each park for electronic ticket pick-up; however, you can pick up tickets ordered online at any of the ticket booths. You must wait in line. Any attempt to jump in front of people will get you sent to the back. Also, Florida Resident tickets cannot be picked up at the electronic kiosks.
The electronic kiosks are located at some of the ends of the regular ticket booths, just look for the signs. It's like walking up and using an ATM. You can buy them online to avoid the lines and get a better deal. Yes, Florida residents have to wait inline because you will have to show FL ID.
Edit: I just looked at my photos and there are specific booths for electronic pickup, sorry. But normally there is never a line that's why I said just walk up.
This is from Universal's website:
Electronic Pickup
Buy online and pick up your tickets at one of our convenient Electronic Ticketing Machines upon arrival at the park.
If you choose Electronic Pickup, you’ll need to bring your confirmation number and the credit card used to purchase your tickets to the park.
Follow the signs to the Electronic Ticketing Machines, swipe your card (for identification purposes only – your card will not be charged again), enter your confirmation number, and print your tickets.
If you forget your credit card when visiting the theme parks, you can pick up your tickets at Guest Services with the confirmation number and photo identification.