Need help - 2019 C300 Mercedes

Holy cow!!! 1hr 45 to dealership, 1 hr 45 back = 3.5 hrs total round trip, 11 am to 8:30 pm is 9.5 hours, so total time spent = 13 hrs!!! Did they feed you?

And I am pretty sure that loaner
a) had scratches

b) was involved in a prior accident