You don't need to make excuses, just go sit down. We've stayed with our rig and we've left it. I haven't felt any particular compulsion to stay with it unless it was more convenient than going home and coming back.
Only once did I have a problem with a repair facility's lack of honesty. We brought our rig in for what should have been a 3-4 hour job at most. They quoted us 6. I said I knew it wasn't going to take 6. They dithered for a bit and said that it was just an estimate, that the actual time would be on the bill. OK, says I, and off to the lounge I went. My rig sat and sat and sat in the drop-off area for hours. When they finally did take it back to one of the bays, the tech went to lunch. When he came back and started working on it, it took about 4 hours. Even though they had seen me watching my rig all day, they still tried to say it took 6 hours. I pointed out that it hadn't even been in a bay for 6 hours. They apologized and fixed it, but that was the last time I took any rig there for service.
2021 Holiday Rambler Armada 44LE
2021 Jeep Wrangler High Altitude toad w/Ready Brute Elite II