Both of them show up here fairly often.
You could also try sending them a PM.
For the OP, check on your airline's website. They may have a page about travel with wheelchairs. For sercurity, it should not be any different than travel with a manual wheelchair - which we do often. If you can walk thru the scanner, they would ask you to do that. Meanwhile, they would take the wheelchair to the other side and scan it with a hand scanner and pat down. If you can't walk, they would take you in the wheelchair to the other side and then scan you in the wheelchair.
Here's a link to the Transportation Security Administration page about travel with mobility disabilities.
I'm pretty sure that is not legal (although there are probably companies getting away with it every day. They might have a loophole if they say they could transport your scooter in the baggage area of the bus and you were able to get onto the bus and transfer to a seat, but
chose to be transferred by a fully accessible bus. (Actually, I found a Federal Transit Authority link that
specifies that a scooter is considered a wheelchair for transport purposes and you can't be required to transfer) so I don't think they could do that.
They would not be able to get away with that though for someone like my DD if she needed transport for her power wheelchair because she could not ride in the regular bus. (That would not be fair for them to charge more because
the company chose to provide a more expensive service rather than choosing to make their buses accessible).
I'm pretty sure the private bus companies are covered under
this part of the ADA. Too long to quote, but it's in this part: §37.103 Purchase or lease of new non-rail vehicles by private entities primarily engaged in the business of transporting people.