Considering that Apollo docker images are usually more than serveral Gigabytes, it is better to download them over WIFI or other stable internet connections And then copy the downloaded image to your vehicle.
After generating or downloading your docker image, you can save it as a local tarball using the following command:
# docker save -o <path/to/saved/image/tar> <repo:tag>
docker save -o apollo_dev.tar apolloauto/apollo:dev-x86_64-18.04-20200823_0534
After copying the saved taball to your vehicle, you can load Apollo docker image from it by running:
# docker load -i <path/to/docker/tarball>
docker load -i apollo_dev.tar