We have the same thing here but it is the AHJ who has the opinion. Down in the county south of me, the GEG usually lands in the meter can. Up here they want it in the service disconnect enclosure although the code allows it either way.
The other issue I addressed is whether it is a problem that the neutral in the meter can is bonded to the can there and again with the main bonding jumper in the service disconnect enclosure. About half of the inspectors say this means you need a plastic nipple between them to avoid current between the enclosures, the rest do not see it as a problem.
I suppose you could cite 250.6
OTOH if you have multiple service disconnects on one service you are required to bond the neutral in each one so you have set up the same type of situation.
