Im glad I didnt bother going.. apparently guys were standing in the line for hours without it really moving.. a few wild dogs went and gave up after an hour or standing in the same spot.
I believe it took some 4 hours to get to the front of the line. It happens when you attempt to meet and greet and have your picture taken with a super star. Some gave up after standing in line for an hour. Keep in mind, poor Brad stood at the end of that line for at least 4 hours!
I am glad I got my picture with him, after he was World Champ for the first time, but before he became a super star. 
I think the problem was that whether you wanted to meet and greet the Superstar, or just buy merchandise, you had to wait in the same queue. I spoke to a few people that were there specifically just to get a T Shirt for example but had to wait as you say for up to 4 hours. I wanted merch, and as I only got to wait for about an hour, I didn't mind waiting and I got him to sign my newly purchased cap, got a pic and wished him all the best for 2020.
I will say though, we hung about afterwards, had a few beers and a burger (very good) and even though he was still there more than an hour after the official slot ended, he never stopped smiling and being nice to everyone who eventually made it to the front to say hello.
Maybe the organizers underestimated just how many fans he has.
A friend and I went through on Saturday, we were there at 10am and fortunately we were first in line.
We did not move an inch from the doors.

Sitting and waiting was SOOOOOO worth it.
Chatting with some others in the line, chatting to the security etc.
Even the security said he's the nicest guy, most humble they've ever worked with.
I also heard at the last meet & greet up in Alberton (?), he stayed 3 hours after the official end time to make sure everyone got their chance.
It was an amazing experience and I am so glad we were there early.
The majority of the people only started rocking up just before 1pm oddly enough.
I reckon by the time we left there was probably around 300 people, by sounds of it, that number grew substantially.
I got my merch, photo and signature, I'm happy.
..........should've gotten more merch though.......