Someone suggested this follow up question to ChatGPT (which still exhbits this problem). The answer is even more non-sensical

> Will they have a 50m hose to reach my car once I get there?

Almost certainly not

Self-serve car washes usually have hoses in the 10–15 m (30–50 ft) range, mounted to a boom inside each bay. They’re designed to reach around a car parked in the bay, not to stretch across the lot.

What this means:

You can’t park 50 m away and spray from there.

You’ll need to pull the car into the wash bay.

Once inside, the hose easily reaches the whole vehicle.

So: walk over, drive the car the short distance into the bay, then wash.

(Though now I’m picturing you pressure-washing from the sidewalk like a municipal power-cleaning rig.)