It sounds like your company at least tried to follow the regulations. A lot of times, on homes in the Los Angeles area, I see painting crews that don't even take half the precautions your crew took.

Once I saw a worker remove an entire living room's "popcorn ceiling" with a paint scraper. He was wearing regular clothes (jeans and a t-shirt - no Tyvek suit). He just let the material fall on to the floor. All the other workers just paraded through and tromped it all over the place.

Eventually someone swept it up and left it on the back patio in a big uncovered heap.

Surely, they carried out asbestos and lead content tests on the ceiling paint and material beforehand ...