You certainly can screw up an oil change. I could give you a few examples if you want. And that place you asked about is one of them. The man was under my car and a kid hanging around took the filter out of the box and put it face down on the dirty gritty cement floor. UGH! I pointed it out to the man and he wiped it off with a rag. I have more but I won't bore you. The trusted mechanic I used to go to retired so I don't have a recommendation anymore. Maybe the Goodyear Tire shop near Sorianas?