I am going to get the sill plates on both sides Line-xed because on the drivers side there is some rust showing again from where the door meets the sill plate. I fixed it before with a temp solution, I just ground/sanded off the old rust, primed/painted it but its worn off and starting to rust again. My question is, the plastic covers that keep the rug down that partially come over the sill plates. can they be removed and if so how? I checked my Haynes manual and it doesnt show anything. I want to remove them to make it easier to get the sill plates sprayed.