[stomachmonkey]

It would depend on how the waitress handled it.

If she just said "opps, sorry and walked off" I would react differently than if she quickly ran off and came back to the table with clean napkins and a big glass of seltzer.

If the garments required the services of a professional dry cleaner I'd send the restaurant the bill.

As far as having comped part of the bill, that's generally the managers call, not the waitress.

It's entirely possible she asked and the manager said no.