Washing a new car completely, is not anal, but a bit OCD behavior.......but, maybe you mean new to you, if so, I probably would have done the same thing!
I don't wash new clothes or linens, will wash unpackaged kitchen items...actually instructions will state to wash before using. Groceries: of course all fresh produce of any kind. I don't think we want to know about canned items..I know there are strict fed laws, but once in awhile someone finds something in the canned food. I think I'm more concerned about restaurant workers...and hope their sanitary practices and personal hygiene and physical health are good, not to mention the cleanliness of the restaurant equipment and practices.....I think more susceptible of contracting something that way rather than thru fabric, clothes (new)....jmho