Post Office locations in Union County, NC (Indian Trail, Marshville, Mineral Springs, Monroe, ...)

Let me start off with saying that I never take the time to write reviews, however, my experience was so bad that I feel the need to warn people. I was not home when a package was delivered so I went to the post office location that was written on the back of the post card that was left stuck to my front door. The information left clearly stated that I could pick it up at the Indian Trail location or call to reschedule a delivery. After fighting through traffic, I finally arrived at the Indian Trail location to pick up my package around 4:45 PM. I also needed to send out a package, and I was the last person in line. The post office was extremely disorganized. I needed to buy an envelope to mail my item out in, but there were no pens available on the table to fill out the address. When I got up to inquire about both my package and the envelope I was using, I met a very miserable person. This individual should not in any way be working in customer service or 'attempting' to help anyone in anyway. He proceeded to yell that my package was at the Monroe location. I am not sure why he was so angry about this; it wasn't him that had been misinformed and inconvenienced. When I asked him what could be done, he got an attitude with me that I was going to have to come pick it up tomorrow. He didn't mention anything about the possibility of rescheduling a delivery because he wasn't interested in helping anyone. I then switched topics to what I wanted to mail out. Before I could inquire about the envelope, he yelled at me to get back in line (there was no line) and fill out the front of the envelope and then come back. He would not answer questions about the envelope I was using or what type of delivery I wanted. I literally took 4 steps back to the table and rummaged around my purse to finally find a pen and filled out the information only to wait for him to get done talking about how much he hated his job. Literally, I heard him say he would have been retired by now if he hadn't gotten injured in the military. He said this probably 5 times. This is not a way to treat people. I went to the post office expecting to be helped, and received horrible treatment. I was reminded of why I use UPS.