If you don't feel comfortable doing it yourself, see if there are any mobile RV techs in the area that will do it. It doesn't take special equipment, just pull the install directions from the internet.
Probably not the end of the world but check if the hitch has a different rating with or without WDH. Most are significantly lower without the WDH. Some as little as 500lb of hitch weight.
If it's a non-windy day on level ground (non-challenging conditions), you can probably just pull it home if the hitch weight is good just take it easy and avoid rush hour.
