I think if my bike had the right Wald basket panniers for just dropping groceries in I'd take mine in with me. I figure if the manager says something to me I'll reply "do you want to be responsible if my $2K bike gets stolen because of your generic Walmart bike rack that I can cut with a bolt cutter?" I used to work in the pharmacy of said grocery store and when I rode my bike through the drive through they got pantsy about i said my bike was a legal road vehicle