[Rich]

If you use a blimp, be sure to tether it.

Any wind is bad for most blimps.

For a short time, I worked as a stand in pilot for the Blimp at the Manchester Monarchs hockey games. Even indoors, the drafts from the HVAC or even flying over the ice would affect the aircraft more than you would expect.

But don't be deterred, there are good balloon, blimp, pole and even kite video platforms for this purpose. And if tethered, I believe you no longer need to worry about any FAA certificate (but check this yourself first).