Last year they made me take down my interlocked RGB projector which was located at well above eye level and pointed at a wall, so I definitely won't be bringing it this year.
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Here's the thing: In the research we do at our group, we deliberately deliver a focused laser beam into a subjects eye (usually ourself), to create volumetric images. We are using scanning spots, but we don't take that as a reason to go over class 2a; we keep it safe for static.
Well duh. Class 2a is already ridiculously bright when aimed into an eye directly. If you're focusing all the energy directly into someone's pupil, of course you don't need to go to dangerous energy levels. There is an enormous loss in diffuse scattering that you bypass.