Lot of people here wetting their panties about towing a 2000lb trailer for 25 miles, 1 time. You could do that with a freakin dodge neon if you had to.
Only way that bumper's coming off is if you take a serious hit. Contact dirtworx and see what they recommend. Are they the kind of company that would sell a bumper with receiver that can't be used? The lawyers would sue the crap out of them.