Spirits: Planes trains and automobiles edition, Or the magical equivalent of trying to hop on a moving train Options

[Walpurgisborn]

So The GM and I have been having a bit of an exercise here trying to figure out, can you summon a spirit in a moving vehicle. His argument is there is no movement in the astral plane as such, instead you pretty much will or think yourself to the location you need to be at, so when materialization happens, any vehicle moving faster than a spirits movement speed is going to just fly right past them.

My argument is that since the planet is already moving at a good fraction of the speed of light, if there was no absolute motion than any summoned spirit is just going to be a lonely speck in the cold hard reaches of space if the spirit isn't already matching speeds as it were. Thus it should be conserving whatever absolute velocity it was using in keeping up with the summoning mage to materialize in a place maintianing the same speed relative to the magician.

So we've decided to put it in front of you. Is it possible to prevent a spirit from materializing by making sure the mage is moving very fast?