Well, I didn't want to reply or contribute to this forum anymore, but this one ticked me.
"Pt package delivery driver"?? Are you serious? It seems like you don't know the lingo here at UPS.
The only thing that's close to that is pt cat washer, which you should forget about getting unless you have more than 20 yrs of seniority in your building, and lastly, Saturday air, which is not that hard to get. You only work on Saturday for only 5 hours getting 12-14 dollars an hour I believe, then after two yrs, you reach top pay, which is $22.
And lastly, you said you are doing the application, I'm assuming online. Do you even know about seniority? If you are currently working at UPS, I don't believe you can submit any application for any opened position, even if you did, it won't work. It's only for outside hires. There should be a bidding list in your building for those opened positions, I believe you sign it, and the highest seniority employee(s) get(s) the job.
You shouldn't be worrying if the hours are long and won't be flexible, you should be worrying about getting the job first, that's the hardest part of it.