fog machines take atleast a minute to warm up like mine its a professional one but some take 2-3 minutes or even longer. also the power would have to come into mind if you would run it from the car you would need an inverter and it would have to be a beefy one because fog machines tend to draw a lot of power. so if you can get past those obsticles it would be a good joke but it seems like a very time consuming (hiding the fog machine/inverter and wiring it up) and somewhat difficult for a joke. other than that go at it!
1994 SSE, 180 t-stat, gucci accented interior, suede headliner, eclipse avx5000 headunit, two 7.8" sunvisor screens, two 7" headrest screens, dvd player / tv tuner, infinity kappa perfect 5.1 components, infinity 12.1 perfect in the trunk, 2 rockford fosgate 350s powers, infinity refrence 7541a, 0 gauge audiobahn high flow wiring, duralast gold battery, sound dampened trunk and doors, xenon-white headlights, 2 15" and 1 20" red neons shine on the back doors, 2 3" and 6 12" blacklights lighting up the whole interior, red leds in the vents, red optx el neon pedals, red streetglow headlight leds, clear corners, pilot seven color angel eyes, blaze seven color underlighting kit, viper 791 xv.