Balance from a full and empty windshield fluid reservoir is probably minimal. The total capacity of it is 1 1/2 gallons, therefore @ 8.33 lbs per gallon, youre at 12.45lbs, above the right tire. hmmm. maybe that does make a difference.

As for the advertising on your car, all it takes is simply asking the salesperson to remove the sticker or emblem prior to delivery. As for the plate advertisement, either you remove it or ask them too. simple.. no need to walk on a deal or get upset its a form of free advertising to them.