What is the most logical next event?

How to unclog a sink
Clear out the blockage with a bent wire hanger.
If you suspect that your sink is clogged with hair or other solid masses, you might be able to fish it out with an old, bent wire hanger.
Straighten out a wire clothes hanger as much as possible.

Available choices: [-] Unbend the hanger's hefty end with pliers and move it to the center vent of your sink. Use a pair of heavy gloves to grasp the loose wire hanger by its base, snap it off, and lift it out of the vent. [-] Bend one end slightly to create a small hook capable of fitting into your sink drain. Slide the wire hanger down, hook-side first, into the drain. [-] If you're unable to do it yourself, get professional help to do it for you. You can also wedge an end of the hanger into the drain and use a pair of pliers to force it out. [-] This is a common device used as a hanger for cleaning combs, brushes, and grooming products. To ensure that you don't create the clogged blockage with your hanger, use a grosgrain brush to grab the offending material.
Bend one end slightly to create a small hook capable of fitting into your sink drain. Slide the wire hanger down, hook-side first, into the drain.