The plastic machine isnt total bullshit if they have a machine like the one i use. The only part that is plastic is the part that goes over the lip of the rim and you use to take off both beads of the tire. I highly doubt they used a machine like this because if they had there is virtually no way in hell to mess up rims that bad. My machine will periodically leave a grease mark, but that comes right off with cleaner fluid.
Is all i have to say to both you cali and chase is you guys need to come see me next time. I have a lot of srt's come over to my shop so i can put parts on, do tires, alignments, basically anything and i dont charge what my shop will so i usually do it on my bosses day off but still. Hit me up if ya need anything. It may be a little drive but at least your shit wont be all messed up. That pretty much goes for anybody.