I thought the labor cost was in-line with the items installed. He stated they had the truck for 9 1/2 hours, all of which was not spent working on it, but still things cost money! They have to pay taxes, utilities, worker comp insurance and many, many other so called "Hidden cost". There are also the materials used (remember the lift that raised the truck, the drills that drilled the holes, taps, and a boat load of other things most don't think about), wages to pay (I hope you are not one of the many that feels know one should make a decent wage except for yourself) and the list goes on. I believe in paying a man a decent wage for a decent days work. Now this tech seems like he did everything right, by your own admission except for the routing and securing of one wire under the truck. If it bothered you so much why not just fix the damn thing while you were under there snooping around? sounds like two ty-wraps and your done. I know you pay your valued money for the job, but you did receive a quality job with the exception of the wire under the truck, and the most important thing is it WORKS, and LOOKS good. People are only human, and thank godd that they still are. The biggest problem facing people today is the computer generation. It has produced a whole lot of people that understand it's use, and how to manage their problems with it. But at the same time, fewer and fewer people are doing any of the jobs that require manual labor or the use of the hands for things besides typing. Computers are as stupid as a guy in a new Ford 6. 0L, they only do what they are told, but they can do it fast and over and over the same way with very little error. Sorry, but humans will and do make mistakes. I personally don't think it was a mistake, just not like you wanted. Is it possible that you were surprised about the total bill and were a little up-set? Maybe needed something to complain about? I don't know, I am just asking.
I do think it is uncalled for to you to trash the name of any company over such a stupid problem. It is not anything major, just personal preference. You went their for a gage install, they did the job, it looks good, everything works, and is neat looking. The wire under the truck and the green lite cover to me a small, picky items that don't add up to the amount of complaint. If you feel that you were not take care of, then don't go back. I have the feeling you expected them to reimburse you a certain amount of the bill, I hope they do not, and see know reason why they should. You have the gages, be happy.