they won't "bounce back" you'll see damage, but you will be able to kill them, you'll be able to smoke the product. just hurry and do something. dont' neem, too late. in the meantime, get a spray bottle and spray those fuckers with cold water. helps to knock them off of the palnt.

if you ave fr eezing temps, put the plant outside for 10-15 mins; this will freeze em off...

but you do need no pest strips, and neem for next time, precuationary