Dear Ansh:
If you only block the sold to, and the sales order have different ship to, is possible to create the outbound delivery, because for outbound delivery the right partner is ship to.
For that scenario is necessary to block the sold to, and also all the the ship to. (10 ship to for your scenario)
Sometimes is difficult because the same ship to could be used for other sold to, so in our company we create different ship to for each sold to, to avoid this problem.
If is not clear yet, please let me know.
Regards Antonio Martinez