You are TOO funny.
I think it means if you don't have a convertible, you'll have one driving on that road??
ha ha ha
Maybe you can time it right and hitch a ride by grabbing on to the landing gear! LOL
We've got those all over the place here.
My favorite road sign is one that looks like a reverse maxi-pad with wings. It means narrow bridge.
I'm a recovering single mother trying desperately to see humor in my day to day toil while simultaneously avoiding reality as much as humanly possible.