Washing and dust wouldn't hurt the film. The one on the Z06 (VentureShield installed by AAP) has so much smearing and streaking from cones at an autox and it will continue to get beat up. So, yes, it's tough and holds up just fine against mere washing/dust/daily wear.
The film used on the B302 and on the Solstice is 3M. This is the film Julius uses nowadays.