I burned my truck. Is this really not legal?

Well, after I tore up my transmission last weekend me and my friends decided to pull out the bad one ourselves to save money. We worked dang near all day and finally got it out but managed to drop it right on Sonnys foot trying to put it in the dumpster. Now hes all mad cause the emergency room said its broke and he will miss three weeks work. Do you know they want about $650.00 dollars for a junk yard transmission? I started thinking about my sad ole truck with no bed and plywood doors (just read my 360 blog for that story) and decided to just put her down and give her a funeral. We pulled the gas tank out then towed it over to a dirt pit off the highway, tossed about three gallons of gas on her then I threw a road flare on the roof. You would have thought an atom bomb went off! We were way away but it still singhed all our hair. We towed the smoking hulk back home just now but my neighbor says that wasn't legal. Why not? I'm not going to claim insurance. Cant I burn my own truck?