If you're talking about the totally chromed out rigs that run 80 in a 65 zone in a snowstorm and blow past everybody else, then run up on the bumpers of, and push tiny 4 wheelers out of the fast lane while yapping it up about how great they can drive on a cb that has such a big antenna that it drowns out everybody within a 50 mile radius... probably not.... (although I have personally seen a few hot shots out there who think 65 means as fast as the truck will go!)
Originally Hotshot was used in the "oil field industry." When a part broke on the oilsite or rig they needed that new part to be there ASAP if not yesterday. So the term of using a pick-up to deliver the part was imperative to the operation of the customer. And the high dollar cost of delivering the part or parts was handsomely paid to you. Now days not so much, as it's have gone like the dodo bird! However, there are still companies that will pay you for your time and trouble to deliver said part. I've seen it pay well over $5.00/mile and up, the skies the limit. If you think about it, you don't have to go through scales, keep the left door shut, stop when you need to stop (like fuel,food,rest room breaks,etc.). If it's haz-mat you have to run placards (maybe-RQ),maybe a logbook(which is questionable,sometimes). I,personally have done hotshot for myself, as being in the right place at the right time and have made well over $10.00/mile. But that's few far and in between. Another company I have leased on with at times, they pay $50/hr+. Sometimes higher.
If you run placards you'd better stop at the scales . If you have a 1 ton pulling a trailer you'd better cross scales in TN . They love to check out duallies .I see them behind the scales or on the side at rest area stops all the time . GA is just as bad .
Running Hot Shot for oil fields requires that you log, stop at scales and all of the other rules and regs for the "big trucks". Don't fallow the rules and eventually DOT will stop you and you'll be neck deep in fines.