You would need to look at the specifics for the shop in question. Some want you to provide the salesman's business card, some want the written estimate they give you. Some want you to just go in and look and talk with the salesman, some want you to take a test drive, some want you to negotiate your best price before you walk away, some want you to have your vehicle evaluated as a trade in, some want you to be a 'serious buyer' without ever taking a test drive. Some want you to go in interested in car X to see if they suggest car Y, some want you to be just looking to see if car Y is suggested, some want you to have some parameters in mind to see if car Y is suggested. Some require you to give a correct name and phone number to see if the salesma follows up, some have no such requirement so you can use an alias and a faux phone number. Obviously if you take a test drive there will be a copy of your driver's license required so you need to use a real name. These shops go from the sublime to the ridiculous.