Another Job Fail, Maybe? Daily Photography Day 51 (2020)

I went through the drive-through at Wendy's and I saw a sign on the speaker that said "we have no sandwich lettuce"
I thought you just used shredded lettuce or Ice Berk Lettuce ( in a ball)
I never heard of "sandwich lettuce"
Wouldn't "we are out of lettuce, sorry for the inconvenience" sound better?