3D/4D private scan

Abby • Mini toddler teacher, competitive figure skater, wife, dog mom
Hi Everyone!
I am having a 3D/4D scan done at 28 weeks, the website of the place says no caffeine for 5 days before the scan... is this typical? I drink about 2 or so cups of coffee each day. I'm worried that stopping caffeine cold turkey will make it so that the baby doesn't move enough for them to get a good scan. What are your experiences ?