I very nearly cancelled my Safelite appointment for my windshield replacement. I got a text advising me there was limited waiting space and that I should consider dropping my car off and waiting for them to call.
But, I decided to take a chance. I made sure I had a folding chair in my car if I needed to set it up somewhere.
As it turned out, they had a spacious waiting room, with many chairs and a TV. I was a bit early, but they took my car by 9:45 and I had it back by 10:30. That's not bad considering they had to make camera adjustments for my rearview mirror.