The 8th Amendment (usually referenced by attorney’s for DP convicts regarding cruel and unusual punishment) also refers to the Gov’t not being allowed to impose excessive fines.
I’d sue based on 8th amendment and infringing on 1st amendment rights.
“Excessive bail shall not be required, NOR EXCESSIVE FINES IMPOSED, nor cruel and unusual punishments inflicted.”
I suspect the person who gets to decide whether the fine was excessive is the same administrative law judge who levied it in the first place.
It is certainly EXCESSIVE, and I think it's cruel and unusual. No way that denying a cake amounts to a $135,000 fine. It's also retributive, so that makes it qualify for ‘cruel and unusual’, doesn't it?