REPLACEMENT !!
Definately! Get a replacement for your car wash!
The antenna is easy to replace. You can get your hand in by the passenger front door to support the mounting assembly, before taking the nut off. It will usually take hand pressure there to get the nut to retighten too.
I'm mechanically challenged, and I installed my chrome bezel and flamed shorty with no problems!
(Anybody remember the days when the neigborhood holligans would go around breaking off antennas, pissing off your Dad?)
OH! No offense Hooligan!