I look forward to the problem of speed bumps disappearing when self driving cars take over. In the mean time, I know everyone hates it, but automated camera based speeding ticket systems would be cheaper and more effective than non-Newtonian speed bumps. We're also at a point in technology where cars could easily know the local speed limit and enforce it themselves.
Automated cars will have the same issues. We'll see a 3rd party mod and chip market immediately. "Go 20% over the limit" and "cut through alleys" and "aggressively pass and change lanes" or "ride the shoulder in heavy traffic" mods will be everywhere.
Heck, we're kinda there now. Recently Google maps asked me to use an alley as a through street, which I found a little off-putting. Alleys aren't designed for thru traffic, have cars and people backing in and out, have children playing basketball, etc.