Make sure you ( or his mom in this case) knows exactly where the tie downs are. We used a stroller with tie downs one year and even though it seemed obvious to me where they were, several times the drivers tried to put the hooks on the frame.
The next trip we used it, I put bright green tape at the tie downs and told the drivers to look for the tape. It made things much faster and easier.
Since your daughter will be getting a
DAS for herself she can tell them she needs the stroller sticker when she gets her DAS. They are two separate services, but can be handled at the same time.