I think you don't have to worry about it as when transaction will be replicated to subscribers it will take whatever happen to the transaction as a whole default will not come...

Also At publication do this in sequence

EXEC sp_dropsubscriptions ,,,,...............

EXEC sp_droppublication ,,,,,.................

EXEC sp_replicationdboption ,,,,,,,.................... (Set to fasle)

EXEC sp_dropsubscriber

EXEC sp_dropdistributor

and you are done

Thanks

Sanjeev

Also you can use SQL Server Configuration Manager (SSCM) to do the same instead of using services directly.

thanks

sanjeev