Have a 2002 Sentra with automatic transmission and 35000 miles.
Starting several months ago I would go to start the car but when I put
the key in the ignition and turned the engine would not turn over.  The
dash lights would not dim (indicating no load being placed on the
battery)  It acted as if the car was trying to be started with the
shift in drive and some sort of lock wasn't unengaging.  This has
happened about a dozen times over the last several months.  So far if I
let the car sit for a minute or two, it will finally kick in and start
fine.  I know it's not the battery as it has been replaced.  I'm
leaning towards whatever safety lock mechanism keeps one from starting
with the car in drive.  Anyone else experience this issue, if so did it
get worse and what did it cost to get it fixed.

Thanks,
-Mike