Does kroger charge to have your stuff ready and bring it out to you

Yes on their app

Yes

They will do it as a courtesy a couple of times, but after what they consider over the courtesy period, which could be anywhere from 3-4X then they're going to charge you a service fee which is not much, usually about $5 which is very fair considering everything is ready for you and you don't have to do anything right?

$5.00 maybe after free one(s)?

When you sign in for that service, they first 3 or 5 pick-ups are free, then they chanrge a small fee for each time you use the service