I have been to In-N-Out many many times and I am rarely disappointed but on this particular visit at this particular location I have to say LAY OFF OF THE SALT SHAKER.
Both my husband and I had the same complaint about over-saltiness and we pinpointed the source of the salt to either the bun or the onions surprisingly enough. We both managed to scarf down every morsel of food on our trays but the excessive salt was a bit of a food buzz-kill.