That's not wobble, that's severe neurological damage. It's usually caused by excessive heat, pesticides, or disease.
What are the temperatures in the enclosure?
Have you treated for mites recently, or have any other pesticides been used on the property recently?
Have you brought in any other snakes in the last six months, and if so where/how/how long have they been in quarantine?
Personally I would have isolated this snake and called the vet after the first night.