And why, when I'm at a turnstile and a person in either a wheelchair or
ECV comes in to the park I will speak directly to them and remind them that racing is not permitted in the park. In about 99% of the cases the people will come back with a remark about how that rule disappoints them, and they, and their party, will have a good laugh.

Cheshire, I love it!! I've had so many smiles from wonderful CMs like yourself who can enjoy a joke with me, rather than cowering at the risk of offending some PC nut! I once had a great CM on a Segway in EPCOT race me and my fella (don't worry, it was really quiet, and there was no one who could have got run over). We won, btw
Last year - a woman on an ECV crashed into my left ankle at Pop's drink station. She didn't even care that she smashed into my ankle very hard. I was unable to speak for a few seconds due to the pain, then I said loudly - "Excuse you!" The woman still did not apologize or react. She was too busy jumping out of her ECV to fill several mugs.
I just had 3 surgeries on my ankle in Dec, Jan, & March. I have an implant. I can never go back to Pop again. I fear the inconsiderate ECV drivers at their food court! OUCH!
You poor thing! I am so sorry to hear that you met such a dreadful woman. Unfortunately there are nasty, selfish people like this in the world, I'm just so sorry that you had to encounter one at Disney; especially one who had a potentially dangerous tool, and was using it so unsafely.
DW's suggestion: Go naked, you would definitely get noticed!

Just make sure you wear plenty of sun cream so you don't burn!!
We also have a hard time with this, especially if I am pushing DW in a wheelchair down hill, I once had to actually tell a lady once that I couldn't stop, and apparently she thought this was being rude, since when is protecting someone being rude? She was standing right in the path of the wheelchair and wasn't moving.
Yeah, my guy and I have stopped caring if people think we're rude now; he just shouts "gang way" and hopes that people are quick to catch on! If they don't, we figure it's natural selection at work
Other ways to get yourself noticed:

Wave your arms madly in the air, preferably on a downhill slope, and preferably with vocal accompaniment (e.g. screaming)

Wear a novelty disguise kit (the ones with glasses, false nose and mustache are preferable): people will notice you, but won't recognise you if they see you again (also a good backup plan for aforementioned bank robbery)

Shout: "look out, cripple coming through!"
(I only use this term to describe myself, not others, and even then only in jest)

Shout: "How do you drive this thing?!" whilst careening down a hill

Shout: "Is that bit meant to come off?"

Mob one of the Year of a Million Dreams' CMs for their uniform - you'll get a whole entourage of stalkers in no time

Rig up a stereo system on your chair / ECV and play loud music from it

Use aforementioned stereo to announce that a special surprise parade will be coming through soon, then just take to the road as everyone runs to grab a space on the curb.

Attend the MGM Jedi Knight Training School, then use the force to clear people out of your way

Steal the AT-AT walker from outside Star Tours, and use that to cruise around the park

If you can't get the AT-AT walker, steal a parade float instead

Don't pay too much attention to where you're going: once you've run over a couple of people, news of you will travel fairly fast.
WARNING: Trying to take this author seriously can lead to headaches, irritability and uncontrolled bouts of rage.