The skid plate is what supports the transmission and transfer case.... when you lowered it you lowered them... that is why your shifter is low and why your key THANKFULLY wouldn't turn.... your transmission has moved away from the shift linkage and is no longer in park....
Jack the skid plate back up.... support the rear of engine and back of the transfer case with jack stands, unbolt the skid plate from the transfer case and remove it...
Don't try to start your engine until the skid plate is bolted back in place.
Then do not use ANYTHING called cement anywhere on an exhaust system.... use steel pipe and steel clamps or weld.
Jack the skid plate back up.... support the rear of engine and back of the transfer case with jack stands, unbolt the skid plate from the transfer case and remove it...
Don't try to start your engine until the skid plate is bolted back in place.
Then do not use ANYTHING called cement anywhere on an exhaust system.... use steel pipe and steel clamps or weld.