While I agree with Sicy's annoyance that a lot of people will need to get off work early to get to the show, it's kind of a blessing in disguise.
1) Being held on a weekday, it's even more likely that the afternoon GA line will be extremely short due to not everyone taking off work.
2) The Bay Area is one of the least U2 friendly urban areas in the country. Demographics play into that, but especially the hipster culture that runs amok around these parts. Again, another good thing because there's less hardcore fans in the area.
3) This show clearly wasn't an instant sell-out as there's been posters advertising it in newspapers and the underground train system. Again, less demand = less people waiting in line at 10AM.
4) The area is too damn shitty. Not only are people worried about crime around there (mostly unfounded for broad daylight and the stadium is out of the way a bit), but there aren't really any restaurants or stores nearby to hang out at. This will discourage camping out. Also, a lot of people won't want to take their car to the stadium and get there faster because they're charging 40 Bucks for parking.
A lot of posters have indicated that you can often get a nice front row spot on the sides of the inner circle by showing up as late as 6 PM! So, I think we should count our blessings that we aren't Dublin or New York or whatever. Leave work a little early, get there by 4 or 5 PM and we should all be good.