car show, dealing with people

How did I do on the edits for these to remove the worst distractions ?
I am finding it hard to remove the people without a tripod, ND filter, and cable release.

I think your best bet would be wide apertures on fast lenses so the people blend into the background. I usually just try to work them into the composition. They are a bit distracting in the first shot but I don't mind them so much in the rest.

Is there a fire alarm box handy?

I think for the most part you're stuck with them, so maybe try to make them part of the image instead of a distraction? If you have enough aperture to make them sufficiently background there's no way you're going to have the whole car even remotely focused.

What I want to know, though, is why there's a Mazda3 on the Ferrari stand. :)