There is no RV Park at work; I would just be parking my rig in one of the employee parking stalls. The reason I'm not able to use my work as my physical address is because it's more of an unofficial thing. My manager is allowing it, but it's something that the higher ups/owner in Seattle have not officially allowed. Other driver's have lived on-site with their rigs hooked up with no problem, but they had family home address to use as their physical address. I just don't want to step over the line and put my manager in a weird position. Also, thank you all for the responses!