I am using an overnight hotel shop new an airport to "anchor" the following:
Before check-in but after 4 PM: park in parking area A, ride shuttle to car rental area; ride next shuttle back, call for garage maintenance to check out a "low" tire; check into hotel
Write reports on shuttle service ($19) and 2nd shift parking shop ($30 + parking fee)
Spend relaxing night at hotel, with no evening interactions.  Taking an in-room picnic and wine. 
Tomorrow AM: hotel bkfst, 2 interactions plus check-out.
Drive to airport lot B; take shuttle to terminal.  Catch shuttle to car rental area; catch next shuttle back to terminal.  Return to Parking area B; call for help stating that I cannot find my vehicle. $25 plus $19, plus parking reimbursement.  I will be home by noon tomorrow. 
Every one of the reports for the above shops is quick and easy.  And all have extended deadlines, so I can have quite a relaxing weekend.  
Also gained: a ton of hotel rewards points and the everlasting gratitude of 2 schedulers whose OTHER assignments I truly covet.  (Think EOQ bonuses ahead!!) 
Since most of DC's main streets are nearly shut down for some big event this weekend, I am not missing out on any shops that I would ordinarily do on the weekend there.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service?  Don't get mad; get video.