From what I understand both parties agree that the dealership tried to settle on a deal that did not work out. Now the dealership is saying let the insurance companies straighten it out and the OP is saying that his insurances company, GEICO, is not getting any information.
I would have to say this sucks for both parties, but the dealership has to be accountable in the end. The car was in
their possession and used by
their employee.
I’m interested to see how the rest of this story unfolds.