i'm from louisiana so i can tell you a few things about our laws:
1st off--you need to come to the celica meet we're having this saturday (unless hurricane ivan messes us up) at the lakefront..i'm going to PM you with some more details.
secondly, the cop has EVERY right to ask you to get out of your car and you CANNOT argue with them or they can call for backup and arrest you. the cop has NO right to search your car without permission. however, if you refuse, the cop has the right to send for a polic dog and if the dog smells something (drugs) then they can legally search your car even without permission (not that this applies in your case)
-you are allowed to have lcd (tv's) in your car--but not in the driver's view. if an SUV or other car has these--they are illegal. however, i think the ones you are talking about are factory installed and they are actually not in the drivers view (unless the driver is reclined) the lcd in suv's pops down from the ceiling and sits next to the drivers head--out of site.
-you can be ticketed for an exhaust for 2 reasons: 1. emissions and 2. sound. most name brand exhausts that meet these recommendations will give you a card that you place in your car that states it is 50 state legal--it will also have a reference # so that the cop can check up on this. if the cop cannot prove that the exhaust exceeds decibel limits (which he obviously couldnt) or fails emissions tests (which he obviously couldnt) then he can't give you a ticket (which he didn't--but some cops choose to anyway). what he said about you can only have the 'stock exhaust' is untrue and he knows it.
-he has every right to have you keep your hands in plain site for security reasons. although you may look harmless to him and were--there are people who 'look' harmless but aren't--and if you watch a few COPS (tv show) episodes you will see this every so often.
that said, sorry you got ticketed--but whenever you do have a cop tail you or see a cop--just turn the tv off for awhile. but anyway, that's soemthing you do at your own risk.