Submit a svcCartItem record

I am looking for a way to recover/submit an svcCartItem record that fell off a users cart.  This is due to the person lgging out and forgetting to submit their cart.  Therefore, an svcCartItem record is created but it is useless and the client needs to o through the process again and complete the transaction of "checking Out".

I am looking for a way to do at least one(1) on the following.

1.  Have the ability to place the svcCartItem back into the clients cart   OR
2.  Submit the svcCartItem on their behalf.

However, it would also help if their is a way to capture the cart permananetly until the client decides to remove or submit these items.

Using HP Service Manager 9.30 Service Catalog (not SRC)