I didn't watch the first link, just read the second. It said the cat was hit and killed in the bike lane. Unfortunately, there are people out there who do swerve in order to hit and kill animals and particularly cats.
That being the case, I agree...why does she allow her cats out by a heavily traveled road? But if they are a feral colony she cares for, that is entirely different. Not that it makes a difference to her feelings for them, but it is different in why they were out there in the first place.
And I gotta say, too, that people drive fast everywhere. Yes, 65 in a 35 is excessive especially if it's a common occurrence. Tell the cops and have them set up a speed trap.
Make some coin for the city, and if it's done a few times people will slow down. Theoretically the "speed limit" in our parking lots is 10 mph, but it's not uncommon for people to speed through the lots way faster than that. The speed limit by our house is 35, but people definitely speed up faster than that. People take speed limits as recommendations all too often.