I'm from out of state. My home state will never find out about the ticket I got while travelling through Tennessee.

False. The Tennessee Department of Safety reports all convictions for traffic citations, including speeding tickets, to your home state. Check with your local Department of Safety or equivalent agency to find out the consequences of getting a ticket in Tennessee. Each state imposes its own penalties. As a matter of fact, in some states, your driver's license could be suspended if you are convicted of excessive speeding (i.e. 20+ MPH over the posted speed limit).