This could be nothing, but looking at permits and location requests for Clayton, I found the survey/design firm William H Smith and Assoc, Houston office , requesting a survey for a whole block around the Clayton Ranch Market. The work type is described as 'Proposed Design' and the requesting party was simply listed as "Clark".
"Need to locate the East half of the BLK 1147 (Ranch Market) from the approaches on the North and South Side of the block and bearing East to the opposite curb of S 2nd St. and to the opposite curb of Pine and Oak st. KMZ available if you call Jeff Knowlton (307)660-8278."
This could be for something totally unrelated, but to have a big national firm asking for marking the Ranch Market parking lot raised some flags for me. It also looks like dig requests for Tesla now don't actually say Tesla on them. They put it in somebody else's name now.
Checking on the Houston address for WH Smith, this is actually an upscale residential apartment complex. So perhaps somebody working from home ? The area code maps to Wyoming, which is where William H Smith is headquartered.