Has anyone else had issues cleaning their Tesla all weather mats? I picked these up in December 2016 and just can not get them cleaned. I have tried soap & water, soaking in soap, scrubbing, etc. The pics are after I cleaned the mats over the weekend. For what these mats cost I am really disappointed with their quality. I have had mats from Lexus and other manufacturers that look good as new after a simple rinse.