Could not have said it better myself, give us some more info on the car, is it the original paint or has it been redone, if it has been re-painted then supply some info on what kind of paint. I.E. was it a single stage or base coat clear coat.

Wet sanding and buffing is one of the biggest jobs to do when you paint, that is where you make it look great, so being that it is that much of a job not only to wet sand and buff your own work but to go over somebody's work and try to make it look good is a hard task at best.