Roads would be a big one, but if someone uses a company shuttle and/or drives at off-peak hours, it's not that big a deal. Mass transit and roads are sized for peak-time use.
Water (although SF residents use about 10% as much water per person as people with lawns in the Central Valley), electricity (although at PG&E tiered rates, this is probably a profit center), garbage disposal (charged at cost-plus). Unlikely to depend on the "safety net" services in any way, and the marginal impact on police/fire is low as well (private security for the building, compliant with fire codes). Without children, there's no impact on schools, and I don't know of many 150k+/yr income friends who would send their kids to SF public schools.
Indirect expenditure via the private sector seems like the greatest impact -- eating in restaurants, buying in stores, etc. -- but sales tax revenue should account for most of that impact, as well as increased profits for businesses, employment, etc.