[iowamark]

The route was changed at the last minute and the decision to put the limo top down was a last minute decision.

Nonsense. JFK typically used the open car, on an announced parade route, on political trips.

[RooRoobird20]

I agree, it is perfectly normal to publish presidential parade routes ahead of time, there is nothing nefarious in that.

The original plan was to have the limo roof up. But JFK and other presidents had sometimes ridden in open limos, so it didn’t seem like a big deal at the time to put the roof down.