Mold spores in Piano

[Bill Pillmore]

I have a customer that had flood damage.  The console only got it's 
casters wet and some splash on the finish and had a dehumidifier rod in 
it.  Although the piano is fine the customer is having his whole house 
treated for mold spores and they need to know how to treat the piano.  I 
asked him what the treatment initialed and he said they wipe down all 
the surfaces of everything. I don't know how practical this is but I was 
wondering if anyone else has gone through this?
Thank you
Bill