I don't remember the specifics - but I seem to recall Andy T at Can-Am RV mentioning that they owned an RV trailer park near the shop and regularly allowed customers to stay there while the work was being done on their rig.
I may be remembering this wrong - but just in case, you should give them a call and ask.
Regardless, even if my memory is fuzzy on that tidbit above, they are very nice people and will likely go out of their way to provide you with the information you're looking for.
At the time we had our hitch work done, we didn't have our Airstream yet so we didn't need any RV campground information. Regardless, they still pointed us toward the Best Western/Stoneridge Inn & Conference Center located about 2 miles down the road from them.