Walk or drive? This one has a fun twist: even though twenty yards is an extremely short distance (you could walk it in about 15 seconds), you'd presumably want to drive — it's a car wash, so your car needs to be there to get washed! If you walked over, you'd have nothing to wash.
Of course, if you're just going there to ask a question or grab a coffee from a vending machine, walking makes far more sense at that distance.
Counting the Ps in "Strawperry":
S-t-r-a-w-p-e-r-r-y
There is one P in Strawperry. (It looks like a playful misspelling of "Strawberry," with the B swapped for a P.)