  Local Scale-Invariance theory is tested by extensive dynamical simulations of
the driven dimer lattice gas model, describing the surface growth of the 2+1
dimensional Kardar-Parisi-Zhang surfaces. Very precise measurements of the
universal autoresponse function enabled us to perform nonlinear fitting with
the scaling forms, suggested by local scale-invariance (LSI). While the simple
LSI ansatz does not seem to work, forms based on logarithmic extension of LSI
provide satisfactory description of the full (measured) time evolution of the
autoresponse function.
