Thanks to all, guys. She will need all the help she can get.

My name is Mark Hayes. I am the National Sales Manager for National Tire & Wheel, the company that this thread is all about. We have been in the off-road business for over 40 years. We have a retail store, an internet site, sell on Amazon and Ebay as well as service wholesale accounts and do installations of products that we sell. We ship all over the country as well as overseas.
We have always taken pride in providing good customer service and always taking care of the customer after the sale. We have a huge amount of return customers that buy from us time after time. 
When I received the first e-mail from Don describing his problem, my first reaction was to find out which salesman he talked to and fire him on the spot but fortunately I have learned through the years to gather the facts before I launch the missiles.
Our phone system records calls (just a part of the system) but I rarely need to use it but in this case I'm glad that I had the recording. After finding it, I listened to it 4 or 5 times then called in a couple of our accounting girls to listen to it as well as a couple of outside unbiased reps from a couple of manufacturers just to see if my opinion was valid or if I was being bias. I pretty much got the same opinion from everyone who listened to it and just about everyone agreed with me about the conversation that Don had with the salesman.
I agreed with about 90% of what Don had sent me (and what he posted here).
Did the salesman do a very good job of trying to sell Don some tires? No
Did the salesman do a very good job of answering Don's questions? Not really, he answered the questions but not in very much detail.
Did the salesman do a very good job of telling Don that he was going to put him on hold to look and see what we had in stock in that size? No, he told him but very quickly and not very loud. Don didn't think that he even told him that he was putting him until he heard the recording.
Did he sound like he hated his job? To someone who doesn't know him, he might sound that that but if you know him, he just has a very monotone dry voice.
Like I said, I agreed with most of the things that Don mentioned but myself and everyone else who listened to the recording did not hear any rudeness.
I called Don and let him listen to the recording also. Afterwards I think that he agreed that the salesman wasn't actually rude, just dry and not very helpful. And to Don's credit, he even said that maybe he was a little long winded and probably put the salesman to sleep. lol
I also let the salesman listen to it a few times and I sincerely think that he was rather shocked at just how dry and uninformative he was on the phone. I told him that this should be a wake up call. I am also going to use this recording as a tool for the other sales guys on how NOT to sell anything.
As much as I hate having to defend our company like this, I feel that there is a good lesson that can be learned from this experience. In the world of social media that we live in, it is so easy to pull the trigger before you think. Just like this post, if someone just reads the headline and the first couple of paragraphs, they are going to form a quick opinion about us that just isn't true. I see that this post was viewed by 200+ people. That is 200 people that we will probably never get a chance to have as a customer. This post may stay on here for the next 20 years and every time that someone reads that headline, they are going to form an opinion without reading the whole story. When I first went to this site after being directed there by Don, I had a feeling that this site was developed for men with values. This whole experience might just help change the way that some of the members here decide on how to address a situation before going public with it. A little research and a good look in the mirror (or in this case a good listen to a recording) may go a long way to saying things that may or may not be true.
The next time you don't like the kids attitude at the McDonalds drive thru, think first of how you addressed him. It may just be reciprocal.
I know that I have dragged this out way to long. I just want to close by saying that I appreciate Don bringing this to my attention and getting a chance to get to know him a little. I enjoyed the conversation that we had and may even get a chance to sell him some tires!