Cafeteria Libertarianism Question of the Week: Triangle Shirtwaist Fire

I suppose I'm beating this one to death but I'm actually not sure what the answer might be.  That is: I gather the Triangle Shirtwaist fire triggered a wave of worker safety legislation.  Would a consistent libertarian find this approach:

• A naive and misdirected initiative, perhaps well-intentioned but sure to undermine the smooth functioning of the market.

or

• Worse than the holocaust.

In either case, I suppose the correct appelation would be "job-killing worker safety legislation."

Afterthought: when I wrote "holocaust," I was thinking of the other one.  But the shirtwaist fire will do.