I have been driving my Model 3 without any issue for 14 months (17 k miles) now. The only work I did was to rotate tires at Costco. I now see that from the Tesla app, I can make service appointments. To give it a try, I used the app to make an appointment for windshield wiper fluid (which seems to have run out). During the steps involved, I don't remember seeing anything about how much the service costs. Could someone from this super-helpful community dispel my fear that I maybe charged $500 for a home visit?