Pizza works well too. Bagels also. Don’t forget the cream cheese.
I tipped my service manager when I was in for some weird CanBus issues a while back on my stage 1 GSW with Bilstein coilovers, etc. they loved the car, covered it under warranty, and took great care of me. I am very much of the same mindset as
@tigeo when it comes to warranties.
I tipped the tech and writer when I dropped my car off. The tech crushed my side skirts with the lift for me. Best $40 I ever spent
Stuff for everybody works better than money to the SA. Spending $40 on cans of soda will get you remembered far better than the $40 to the adviser.
My Acura dealership screwed up an alignment (steering wheel crooked), overfilled the oil and said the steering wheel being off is OK.
I called Acura and pitched a fit. A day later I got a call from the service manager who asked me to bring it in. I spoke with the head tech who looked at the steering wheel and said "where did you get that alignment done, it is awful?" The service manager just tried to disappear into the wall. They did another oil change, fixed the steering and offered me some free services.
I thanked them and drove to the Target down the street where they had sodas on sale (4 cases for $10) and bought an assortment for $40 - so 16 cases.
I drove back to the dealership and into their service lane and I saw the expression on the service manager's face - an "oh shit, what now?" look. I got out, popped the hatch (it was a wagon) and started unloading the sodas. The manager came over and said "what's this". I responded with "I just wanted to thank you guys for taking ownership and fixing my car", got back in and drove off.
From then on I was offered loaners and "free" stuff. When I needed new tires, the manager said "we have a free install special if you buy from us but we're more expensive than TireRack, but if you have then dropshipped here, then we'll mount and roadforce balance them for free. We get our tires from them too and just assume that you've bought them here"