I have a problem, I hope you guys can advice.

My car had an undercoating job done and i got it back yesterday. I left the place satisfied with their accomodating service only to discover their gross negligence of having left my front right tire loosely screwed. That was my first problem to solve the whole day today, i was worried about the thumping sound yun pala it was the tire.

Anyway, the bigger yet unsolved problem: Then i had my car washed and was surprised to see that the body still had a sticky and grainy texture. even the windshield! I noticed this when i picked up my car but thought it was just dirt and was told by the mechanic it was so. Great, obviously they screwed up protecting the body when they applied the undercoating. Most likely they didnt cover it properly. I have yet to talk to the owner of the shop, but i want to ask how to remedy the problem which i will be demanding the shop to shoulder.

Is there a liquid solution that can easily "wipe away" this layer of stickiness? or does this call for a major paint job?? Or buffing? If buffing is the answer, that would be a problem. a shop demo-buffed a small area of my hood and since white spots appeared he said my car's paint was too thin to buff properly and would need a total "hilamos"...

great. argh. any input on ow to solve this would be appreciated. thanks!