While they are checking things out and rotating you wheels, change the oil and filter. Regardless your maintenance philosophy, the first one is the most important and should be done early.
Moved to the maintenance sub forum and also moved from the Prius v forum as you show you own a 2015 Prius which is a Gen III.
i did my oil at 5,000 then every 10 after that. mark your tyres to make sure they rotate, check the oil on a flat surface before leaving, mark the oil filter to make sure they replaced, do i sound paranoid?
I could see the possibility of doing this with Classic or 2G where the entire filter is removed and replaced. With 3G which has a replaceable filter cartridge element, what exactly would you mark - and how would you verify the presence or lack of the mark after the filter has been changed??
good point. could you mark the cover so you can at least see if it has been moved? someone opened theirs, and there was no filter inside.
If you had, you'd have probably noticed when you started putting things away and discovered you had a new, non-oily filter left over---I hope. The pre-spin-on cartridge filters of 1950s engines would've been susceptible to the same sort of mistake. My father never forgot, at least not when I was watching.
I've also done my first oil change at 5k, then at every 10k thereafter on my Prius and Camry(hybrid). Check if they will charge before doing the code work. Some dealers want a bunch just to hook up the machine(mine wanted like $80 bucks) if not done when purchasing as part of the deal.
Asked service writer to remove buzzer on backup and seat belt. She stated that it was first she heard of request but would ask one of her prius "gurus". Sure enough, buzzer disabled completely on seat belt reminder and just one "buzz" on backup. Sweet!
Assuming you checked the level before you left, check it again tomorrow morning and at at every fill up. Trust me on this one.
Trust but verify. Check the dipstick to ensure that they at least replaced the oil and got something approaching the right amount of oil back into the car. Kudo's to your dealership for responding to your request to disable the beepers. Usually, the seat-belt preachers start sermonizing about this right about now, and I agree that it's something of a Darwin issue, but I am pleased that your dealership didn't play the lawyer card, and they acceded to your request. Good Luck!
